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JetBrains YouTrack CVE-2026-75051

| EUVDEUVD-2026-60250 HIGH
Missing Authorization (CWE-862)
2026-08-17 cve@jetbrains.com GHSA-g6q4-jqwc-9w46
8.1
CVSS 3.1 · Vendor: jetbrains
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Severity by source

Vendor (jetbrains) PRIMARY
8.1 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
vuln.today AI
8.1 HIGH

Network-accessible web API flaw requiring only a valid user session (PR:L); no confidentiality or integrity impact on availability; scope unchanged as the affected project data stays within the application boundary.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (jetbrains).

CVSS VectorVendor: jetbrains

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

3
Patch available
Aug 17, 2026 - 17:02 EUVD
Analysis Generated
Aug 17, 2026 - 16:39 vuln.today
CVE Published
Aug 17, 2026 - 16:17 cve.org
HIGH 8.1

DescriptionCVE.org

In JetBrains YouTrack before 2026.2.17917 unauthorised project transfer between organisations was possible

AnalysisAI

Unauthorized project transfer between organizations in JetBrains YouTrack before version 2026.2.17917 exposes high-severity access control failure affecting any multi-tenant or multi-organization deployment. Any authenticated low-privileged user can transfer projects across organizational boundaries without holding the necessary authorization, resulting in high confidentiality and integrity impact against affected projects and their data. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to YouTrack with low-privileged account
Delivery
Enumerate accessible projects across organizations
Exploit
Craft unauthorized project transfer API request
Execution
Server executes transfer without authorization check
Persist
Attacker organization gains full ownership of victim project
Impact
Access all project issues, history, and attachments

Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to hold a valid authenticated session in the YouTrack instance - confirmed by the CVSS vector PR:L (low-privileged user). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 8.1 score reflects genuine, actionable risk: network-reachable (AV:N), low complexity (AC:L), low-privilege authentication required (PR:L), no user interaction needed (UI:N), with high confidentiality and integrity impact (C:H/I:H) and no availability impact (A:N). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated low-privileged YouTrack user with access to a shared or multi-organization instance identifies a target project belonging to another organization. The attacker submits a project transfer request to the API without holding the required authorization over the target project; due to the missing authorization check, the server processes the request and transfers the project - along with all its issues, attachments, and metadata - into the attacker's organization, granting full access to the project's data. …
Remediation Upgrade JetBrains YouTrack to version 2026.2.17917 or later, which is the vendor-confirmed fixed release per the advisory at https://www.jetbrains.com/privacy-security/issues-fixed/. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Verify your current YouTrack version and determine if it is prior to 2026.2.17917; if vulnerable, immediately restrict project transfer permissions to explicitly authorized administrators and disable cross-organization project transfers. …

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CVE-2026-75051 vulnerability details – vuln.today

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