CVE-2026-20888

Summary

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.

Affected Software

Weaknesses

• CWE-284: CWE-284: Improper Access Control
• CWE-862: CWE-862: Missing Authorization

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/go-gitea/gitea/security/advisories/GHSA-ccq9-c5hv-cf64
• https://github.com/go-gitea/gitea/pull/36341
• https://github.com/go-gitea/gitea/pull/36356
• https://github.com/go-gitea/gitea/releases/tag/v1.25.4
• https://blog.gitea.com/release-of-1.25.4/

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