Medium severity · published Jan 22, 2026
CVE-2026-20888
Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
Gitea · Gitea
before 1.25.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20888
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20888
Release Notes
https://blog.gitea.com/release-of-1.25.4/
Issue Tracking
https://github.com/go-gitea/gitea/pull/36341
Issue Tracking
https://github.com/go-gitea/gitea/pull/36356
Release Notes
https://github.com/go-gitea/gitea/releases/tag/v1.25.4
Broken Link
https://github.com/go-gitea/gitea/security/advisories/GHSA-ccq9-c5hv-cf64
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