CVE-2026-20800

Summary

Gitea's notification API does not re-validate repository access permissions when returning notification details. After a user's access to a private repository is revoked, they may still view issue and pull request titles through previously received notifications.

Affected Software

Weaknesses

• CWE-200: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

ADP Enrichment

CISA ADP Vulnrichment

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

References

• https://github.com/go-gitea/gitea/security/advisories/GHSA-g54m-9f6g-wj7q
• https://github.com/go-gitea/gitea/pull/36339
• https://github.com/go-gitea/gitea/releases/tag/v1.25.4
• https://blog.gitea.com/release-of-1.25.4/

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