CVE-2026-20912CRITICAL 9.1EPSS p34.2%

CVE-2026-20912CVE-2026-20912

gitea / gitea

Description

Gitea does not properly validate repository ownership when linking attachments to releases. An attachment uploaded to a private repository could potentially be linked to a release in a different public repository, making it accessible to unauthorized users.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS0.41% probability of exploitation · percentile 34.2% · 2026-08-03T12:00:16Z
Published2026-01-22
Last modified2026-07-15

Underlying weaknesses· 2

CWE-284CWE-639

References

  1. https://blog.gitea.com/release-of-1.25.4/
  2. https://github.com/go-gitea/gitea/pull/36320
  3. https://github.com/go-gitea/gitea/pull/36355
  4. https://github.com/go-gitea/gitea/releases/tag/v1.25.4
  5. https://github.com/go-gitea/gitea/security/advisories/GHSA-vfmv-f93v-37mw

2

TypeTargetConfidenceTier
WeaknessImproper Access Controlcwe-2840%live
WeaknessAuthorization Bypass Through User-Controlled Keycwe-6390%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.