What is the CVSS score of CVE-2026-20888?

CVE-2026-20888 has a CVSS 3.1 base score of 4.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Gitea are affected by CVE-2026-20888?

CVE-2026-20888 presents moderate security risk, a improper access control vulnerability rated CVSS 4.3. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2026-20888?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Gitea CVE-2026-20888

MEDIUM

Improper Access Control (CWE-284)

2026-01-22 88ee5874-cf24-4952-aea0-31affedb7ff2

GHSA-9cgq-wp42-4rpq

Authentication Bypass Gitea Red Hat Suse

4.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.3 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

SUSE

MEDIUM

qualitative

Red Hat

4.3 MEDIUM

qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

Patch released

Jan 29, 2026 - 22:00 nvd

Patch available

CVE Published

Jan 22, 2026 - 22:16 nvd

MEDIUM 4.3

DescriptionCVE.org

Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface. A user with read access to pull requests may be able to cancel auto-merges scheduled by other users.

AnalysisAI

Gitea fails to enforce proper authorization checks when users attempt to cancel scheduled auto-merges through the web interface, allowing any user with pull request read access to cancel merge operations initiated by other users. This authorization bypass could disrupt automated workflows and merge processes across repositories. A patch is available to address this vulnerability.

Technical ContextAI

Classified as CWE-284 (Improper Access Control). Affects the web component of Gitea. Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface. A user with read access to pull requests may be able to cancel auto-merges scheduled by other users.

RemediationAI

A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.

More in Gitea

View all

CVE-2026-27771 HIGH Act Now POC

8.2 Jul 03

Broken access control in Gitea's Composer package registry (versions up to and including 1.26.1) lets remote attackers r

CVE-2022-30781 HIGH Act Now POC

7.5 May 16

Gitea before 1.16.7 does not escape git fetch remote. Rated high severity (CVSS 7.5), this vulnerability is remotely exp

CVE-2020-14144 HIGH Act Now POC

7.2 Oct 16

The git hook feature in Gitea 1.1.0 through 1.12.5 might allow for authenticated remote code execution in customer envir

CVE-2024-6886 CRITICAL Act Now POC

10.0 Aug 06

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea Gitea

CVE-2026-58053 CRITICAL Act Now POC

9.4 Jun 28

Container escape in Gitea act_runner (Docker backend, through act 0.262.0) lets an authenticated user with workflow-exec

CVE-2019-11229 HIGH This Week POC

8.8 Apr 15

models/repo_mirror.go in Gitea before 1.7.6 and 1.8.x before 1.8-RC3 mishandles mirror repo URL settings, leading to rem

CVE-2020-13246 HIGH This Week POC

7.5 May 20

An issue was discovered in Gitea through 1.11.5. Rated high severity (CVSS 7.5), this vulnerability is remotely exploita

CVE-2022-0905 HIGH This Week POC

7.1 Mar 10

Missing Authorization in GitHub repository go-gitea/gitea prior to 1.16.4. Rated high severity (CVSS 7.1), this vulnerab

CVE-2022-1058 MEDIUM This Month POC

6.1 Mar 24

Open Redirect on login in GitHub repository go-gitea/gitea prior to 1.16.5. Rated medium severity (CVSS 6.1), this vulne

CVE-2026-20896 CRITICAL Act Now POC

9.8 Jul 03

Reverse-proxy authentication bypass in the official Gitea Docker image (versions up to and including 1.26.2) allows any

CVE-2026-27780 CRITICAL Act Now

9.8 Jul 03

Branch-protection bypass in Gitea's self-hosted Git server (all versions before 1.26.0) allows a user with push access t

CVE-2026-26292 CRITICAL Act Now

9.8 Jul 03

Migration transport protections in Gitea are bypassed for Git LFS operations, affecting all self-hosted instances before

Same weakness CWE-284 – Improper Access Control

View all

CVE-2012-4681 CRITICAL POC

9.8

CVE-2011-3544 CRITICAL POC

9.8

CVE-2012-1723 CRITICAL POC

9.8

CVE-2012-5076 CRITICAL POC

9.8

CVE-2014-3120 HIGH POC

8.1

CVE-2013-2423 LOW POC

3.7

CVE-2016-3427 CRITICAL

9.8

CVE-2025-12480 CRITICAL POC

9.1

Same technique Authentication Bypass

View all

CVE-2023-22515 CRITICAL POC

9.8

CVE-2012-4681 CRITICAL POC

9.8

CVE-2013-2465 CRITICAL POC

9.8

CVE-2011-3544 CRITICAL POC

9.8

CVE-2012-1723 CRITICAL POC

9.8

CVE-2017-10271 HIGH POC

7.5

CVE-2015-1427 CRITICAL POC

9.8

CVE-2025-3248 CRITICAL POC

9.8

Vendor StatusVendor

SUSE

Severity: Medium

Product	Status
openSUSE Leap 15.6	Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP5	Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP6	Fixed
openSUSE Leap 15.5	Fixed

CVE-2026-20888 vulnerability details – vuln.today

Back

Gitea CVE-2026-20888

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

More in Gitea

Same weakness CWE-284 – Improper Access Control

Same technique Authentication Bypass

Vendor StatusVendor

SUSE

Share

External POC / Exploit Code