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CVE

CVE-2026-20888

Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface. A user with rea

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.

MEDIUM · CVSS 4.3 EPSS 0.00018
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-284Improper Access Control
CWE-862Missing Authorization
▤

Affected Products & Versions

1
gitea< 1.25.4
▤

Affected Packages

2
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go code.gitea.io/gitea fixed in 1.25.4
Go github.com/go-gitea/gitea MODERATE fixed in 1.25.4
▣

Scoring & Timeline

4.3
MEDIUM · CVSS v3.1 · 88ee5874-cf24-4952-aea0-31affedb7ff2
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Jan 2026 · 10:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://blog.gitea.com/release-of-1.25.4/Release Notes
https://github.com/go-gitea/gitea/pull/36341Issue TrackingPatch
https://github.com/go-gitea/gitea/pull/36356Issue TrackingPatch
https://github.com/go-gitea/gitea/releases/tag/v1.25.4Release Notes
https://github.com/go-gitea/gitea/security/advisories/GHSA-ccq9-c5hv-cf64Broken Link
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