Gitlab

A vulnerability has been discovered in GitLab CE/EE affecting all versions starting with 16.8 before 18.5.0 that could have allowed unauthorized edits to merge request approval rules under certain conditions. [CVSS 3.1 LOW]

Gitlab versions up to 18.6.4 is affected by allocation of resources without limits or throttling (CVSS 5.3).

GitLab CE/EE versions 18.6 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2 are vulnerable to two-factor authentication bypass when an attacker has knowledge of a victim's credential ID and can forge device responses. This allows an unauthenticated attacker to circumvent 2FA protections and gain unauthorized access to accounts. No patch is currently available.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.7 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2 that could have allowed an unauthenticated user to cause a denial of service condition by exploiting incorrect authorization validation in API endpoints. [CVSS 7.5 HIGH]

Gitlab versions up to 18.6.4 is affected by allocation of resources without limits or throttling (CVSS 7.5).

Gitlab versions up to 18.6.4 is affected by loop with unreachable exit condition (infinite loop) (CVSS 6.5).

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.10 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated user to execute stored cross-site scripting through improper input validation in the Kubernetes proxy functionality. [CVSS 7.7 HIGH]

Kiro IDE versions before 0.6.18 are vulnerable to command injection when processing maliciously named workspace folders in the GitLab Merge-Request helper, allowing local attackers with user interaction to execute arbitrary commands with high impact on confidentiality, integrity, and availability. The vulnerability requires local access and user interaction to open a crafted workspace, but no patch is currently available and exploitation requires minimal complexity. Users should restrict workspace access and avoid opening untrusted workspace folders until an update is released.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2.2 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an authenticated user to achieve stored cross-site scripting by exploiting GitLab Flavored Markdown. [CVSS 8.7 HIGH]

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.3 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed a user to leak certain information by referencing specially crafted images that bypass asset proxy protection. [CVSS 3.5 LOW]

GitLab has remediated an issue in GitLab EE affecting all versions from 18.5 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an authenticated user to modify instance-wide AI feature provider settings by exploiting missing authorization checks in GraphQL mutations. [CVSS 6.5 MEDIUM]

GitLab has remediated an issue in GitLab EE affecting all versions from 18.4 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an authenticated user to access and utilize AI model settings from unauthorized namespaces by manipulating namespace identifiers in API requests. [CVSS 7.1 HIGH]

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an unauthenticated user to execute arbitrary code in the context of an authenticated user's browser by convincing the legitimate user to visit a specially crafted webpage. [CVSS 8.0 HIGH]

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.4 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an authenticated user with specific permissions to remove all project runners from unrelated projects by manipulating GraphQL runner associations. [CVSS 5.4 MEDIUM]

Gitlab versions up to 18.5.5 is affected by allocation of resources without limits or throttling (CVSS 6.5).

Spinnaker is an open source, multi-cloud continuous delivery platform. Versions prior to 2025.1.6, 2025.2.3, and 2025.3.0 are vulnerable to server-side request forgery. [CVSS 7.9 HIGH]

HedgeDoc is an open source, real-time, collaborative, markdown notes application. Prior to 1.10.4, some of HedgeDoc's OAuth2 endpoints for social login providers such as Google, GitHub, GitLab, Facebook or Dropbox lack CSRF protection, since they don't send a state parameter and verify the response using this parameter. This vulnerability is fixed in 1.10.4.

A security vulnerability in GitLab CE/EE affecting all (CVSS 7.7). High severity vulnerability requiring prompt remediation.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.3 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that could have allowed an authenticated user with specific. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

GitLab has remediated an issue in GitLab EE affecting all versions from 13.7 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that could have allowed an authenticated user to view. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.2 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that could have allowed an authenticated user with access to. Rated low severity (CVSS 2.0), this vulnerability is remotely exploitable. No vendor patch available.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.3 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that under specific conditions could have allowed an. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that could have allowed an unauthenticated user to cause a. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.7 to 18.2.8, 18.3 before 18.3.4, and 18.4 before 18.4.2 that could have allowed authenticated users without project. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker to cause a. Rated low severity (CVSS 3.5), this vulnerability is remotely exploitable. No vendor patch available.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.9 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker to bypass. Rated low severity (CVSS 3.1), this vulnerability is remotely exploitable. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 17.6 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2, that, under specific conditions, could have allowed. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

GitLab has remediated an issue in GitLab EE affecting all versions from 17.8 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker to leak. Rated low severity (CVSS 3.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.2 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker with. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.7 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2, that could have allowed a blocked user to access sensitive. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

GitLab has remediated an issue in GitLab EE affecting all versions from 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated user to gain CSRF tokens by exploiting. Rated low severity (CVSS 3.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

An issue has been discovered in GitLab EE affecting all versions from 18.1 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that, under certain circumstances, could have allowed an attacker. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Rejected reason: This CVE was assigned for a libxml2 issue#1012 but later deemed not valid. No vendor patch available.

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning If get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up doing a shift operation where the number of bits shifted equals number of bits in the operand. This behaviour is undefined. Set num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the count is >= number of bits in the operand. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472

Denial of Service issue in GraphQL endpoints in Gitlab EE/CE affecting all versions from 11.10 prior to 18.2.7, 18.3 prior to 18.3.3, and 18.4 prior to 18.4.1 allows unauthenticated users to. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 17.10 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1 that could have allowed an authenticated user to gain. Rated low severity (CVSS 3.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue was discovered in GitLab CE/EE affecting all versions starting from 17.2 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1, that allows an attacker to cause uncontrolled CPU. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 17.4 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1 where certain string conversion methods exhibit performance. Rated low severity (CVSS 3.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 14.10 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1, that could have allowed Guest users to access sensitive. Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 14.10 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1 that could allow an attacker to inject malicious content that. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

A privilege escalation issue has been discovered in GitLab EE affecting all versions from 16.6 prior to 18.2.7, 18.3 prior to 18.3.3, and 18.4 prior to 18.4.1 that could have allowed a developer with. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab EE affecting all versions from 16.6 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1. Rated low severity (CVSS 3.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 18.1 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1 that could have allowed an authenticated user to create a. Rated low severity (CVSS 3.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue was discovered in GitLab CE/EE affecting all versions before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1 that allows unauthenticated users to cause a Denial of Service (DoS) condition. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 7.8 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed an authenticated user with. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 15.1 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed authenticated users to view. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 16.11 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed authenticated users to make unintended. Rated high severity (CVSS 8.5), this vulnerability is remotely exploitable. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 7.12 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed unauthorized users to render the GitLab. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 15.0 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed an authenticated user to stall. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 10.7 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed authenticated users to disrupt access. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Gitpod is a developer platform for cloud development environments. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that under certain conditions could have allowed an authenticated. Rated medium severity (CVSS 5.0). No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 14.1 before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that that under certain conditions could have allowed an. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 8.15 before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that could have could have allowed an authenticated user to. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that could have allowed unauthenticated users to access sensitive manual. Rated medium severity (CVSS 5.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab EE affecting all versions from 18.0 prior to 18.0.6, 18.1 prior to 18.1.4, and 18.2 prior to 18.2.2 that could have allowed authenticated users with specific. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 18.2 before 18.2.2 that, under certain conditions, could have allowed authenticated users to achieve stored cross-site. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 14.2 before 18.0.6, 18.1 before 18.1.4 and 18.2 before 18.2.2 that, under certain conditions, could have allowed a successful. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed authenticated users to achieve account takeover by. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 15.7 before 18.0.6, 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed authenticated users with developer. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 13.2 before 18.0.6, 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed authenticated users to create a denial. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 11.6 before 18.0.6, 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed an authenticated user to cause a denial. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An improper access control in Gitlab EE affecting all versions from 12.0 prior to 18.0.6, 18.1 prior to 18.1.4, and 18.2 prior to 18.2.2 that under certain conditions could have allowed users to view. Rated low severity (CVSS 3.1), this vulnerability is remotely exploitable. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 8.14 before 18.0.6, 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed an unauthenticated user to create a. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 17.7 before 18.0.6, 18.1 before 18.1.4, and 18.2 before 18.2.2 that under certain conditions could have allowed authenticated. Rated medium severity (CVSS 6.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue has been discovered in GitLab CE/EE affecting all versions from 15.6 before 18.0.6, 18.1 before 18.1.4, and 18.2 before 18.2.2 that under certain conditions could have allowed authenticated. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Rejected reason: Upon investigtion upstream maintainers discovered this was not a real issue. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

CVE-2025-6948 is a Stored Cross-Site Scripting (XSS) vulnerability in GitLab CE/EE that allows authenticated attackers to execute actions on behalf of other users through malicious content injection. Affected versions include 17.11 before 17.11.6, 18.0 before 18.0.4, and 18.1 before 18.1.2. An attacker with valid credentials can manipulate the UI context (via user interaction) to perform unauthorized actions with high confidentiality and integrity impact across the GitLab instance.

An issue has been discovered in GitLab EE affecting all versions from 18.0 before 18.0.4 and 18.1 before 18.1.2 that could have allowed authenticated maintainers to bypass group-level user invitation restrictions by sending crafted API requests.

An issue has been discovered in GitLab EE affecting all versions from 18.0 before 18.0.4 and 18.1 before 18.1.2 that could have allowed authenticated users with invitation privileges to bypass group-level user invitation restrictions by manipulating group invitation functionality.

An issue has been discovered in GitLab EE affecting all versions from 13.3 before 17.11.6, 18.0 before 18.0.4, and 18.1 before 18.1.2 that could have allowed authenticated project owners to bypass group-level forking restrictions by manipulating API requests.

An issue has been discovered in GitLab EE affecting all versions from 16.10 before 17.11.5, 18.0 before 18.0.3, and 18.1 before 18.1.1 that could have allowed authenticated users to assign unrelated compliance frameworks to projects by sending crafted GraphQL mutations that bypassed framework-specific permission checks.

An issue has been discovered in GitLab CE/EE affecting all versions from 17.2 before 17.11.5, 18.0 before 18.0.3, and 18.1 before 18.1.1 that could have allowed authenticated users with Guest role permissions to add child items to incident work items by sending crafted API requests that bypassed UI-enforced role restrictions.

An issue has been discovered in GitLab CE/EE affecting all versions from 10.7 before 17.11.5, 18.0 before 18.0.3, and 18.1 before 18.1.1 that could have allowed authenticated attackers to create a DoS condition by sending crafted GraphQL requests.

A privilege escalation vulnerability in GitLab CE/EE affecting all (CVSS 3.1). Remediation should follow standard vulnerability management procedures.

An issue has been discovered in GitLab CE/EE affecting all versions from 17.2 before 17.11.5, 18.0 before 18.0.3, and 18.1 before 18.1.1 that could have allowed unauthenticated attackers to upload arbitrary files to public projects by sending crafted API requests, potentially leading to resource abuse and unauthorized content storage.

An issue has been discovered in GitLab EE affecting all versions starting from 16.0 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. Arbitrary access to the titles of an private specific references could be leaked through the service-desk custom email template.

CVE-2024-4994 is a Cross-Site Request Forgery (CSRF) vulnerability in GitLab's GraphQL API that allows unauthenticated attackers to execute arbitrary GraphQL mutations through a malicious website visited by authenticated GitLab users. This affects GitLab CE/EE versions 16.1.0-16.11.4, 17.0.0-17.0.2, and 17.1.0, with a CVSS score of 8.1 indicating high severity. The vulnerability requires user interaction (clicking a malicious link) but can result in unauthorized data manipulation or system compromise depending on the mutations executed.

A Denial of Service (DoS) condition has been discovered in GitLab CE/EE affecting all versions from 7.10 prior before 16.11.5, version 17.0 before 17.0.3, and 17.1 before 17.1.1. It is possible for an attacker to cause a denial of service using a crafted markdown page.

GitLab CE/EE contains a missing authorization check (CWE-862) in its compliance frameworks feature that allows authenticated users with limited privileges to apply compliance frameworks to projects outside the intended scope of the framework's group, potentially affecting confidentiality, integrity, and availability. This vulnerability affects GitLab versions 17.11 before 17.11.4 and 18.0 before 18.0.2. The CVSS 8.5 score reflects high severity due to the scope change and multiple impact categories, though exploitation requires low-level user authentication and higher-than-typical attack complexity.

A security vulnerability in all (CVSS 8.7) that allows for cross-site-scripting attack and content security policy bypass. High severity vulnerability requiring prompt remediation.

An issue was discovered in GitLab EE affecting all versions starting from 17.0 prior to 17.0.6, starting from 17.1 prior to 17.1.4, and starting from 17.2 prior to 17.2.2, where webhook deletion audit log preserved auth credentials.

An issue has been discovered in GitLab EE affecting all versions from 12.0 before 17.10.8, 17.11 before 17.11.4, and 18.0 before 18.0.2. Under certain conditions users could bypass IP access restrictions and view sensitive information.

An issue has been discovered in GitLab EE affecting all versions prior to 17.10.8, 17.11 prior to 17.11.4, and 18.0 prior to 18.0.2. It may have been possible for private repository to be cloned in case of race condition when a secondary node is out of sync.

An issue has been discovered in GitLab CE/EE affecting all versions from 17.9 before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. It was possible for authenticated users to access arbitrary compliance frameworks, leading to unauthorized data disclosure.

A denial of service vulnerability in GitLab CE/EE affecting all (CVSS 7.5) that allows an attacker. Risk factors: public PoC available.

An issue has been discovered in GitLab CE/EE affecting all versions from 2.1.0 before 17.10.8, 17.11 before 17.11.4, and 18.0 before 18.0.2. A lack of input validation in HTTP responses could allow an authenticated user to cause denial of service.

CVE-2025-4278 is an HTML injection vulnerability in GitLab CE/EE versions 18.0.0 through 18.0.1 that allows authenticated attackers to inject malicious HTML through the new search page. Under specific conditions, this vulnerability can escalate to account takeover by leveraging user interaction (UI requirement), with a CVSS score of 8.7 indicating high severity. The vulnerability requires low attack complexity and network accessibility, making it a significant risk for organizations running affected GitLab versions.

Cross-Site Scripting (XSS) vulnerability in GitLab's snippet viewer functionality caused by improper output encoding, affecting versions 17.9-17.10.7, 17.11-17.11.3, and 18.0-18.0.1. An authenticated attacker with UI interaction from a victim can execute arbitrary JavaScript in the context of the victim's browser session, potentially stealing session tokens, performing unauthorized actions, or stealing sensitive data. The CVSS score of 8.7 (High) reflects network accessibility and significant impact on confidentiality and integrity, though exploitation requires user interaction and authenticated access.

An issue has been discovered in GitLab CE/EE affecting all versions from 8.7 before 17.10.8, 17.11 before 17.11.4, and 18.0 before 18.0.2. Improper input validation in Tokens Names could be used to trigger a denial of service.