CVE-2026-20912

CRITICAL EPSS 33.2%
Published Jan 22, 20265mo ago · Modified Jun 17, 20262w ago
9.1 CVSS 3.1
Critical
Find Similar
Published Jan 22, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
9.1
Exploitability
3.9
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
33.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-284
CWE-639

Affected Products 1

VendorProductVersionRange
giteagitea* <1.25.4

References 5

  • blog.gitea.com https://blog.gitea.com/release-of-1.25.4/
    Release Notes
  • github.com https://github.com/go-gitea/gitea/pull/36320
    Issue TrackingPatch
  • github.com https://github.com/go-gitea/gitea/pull/36355
    Issue TrackingPatch
  • github.com https://github.com/go-gitea/gitea/releases/tag/v1.25.4
    Release Notes
  • github.com https://github.com/go-gitea/gitea/security/advisories/GHSA-vfmv-f93v-37mw
    Broken Link

Remediation

  • github.com https://github.com/go-gitea/gitea/pull/36320
    Issue TrackingPatch
  • github.com https://github.com/go-gitea/gitea/pull/36355
    Issue TrackingPatch