Repository Ownership Validation Issue in Gitea by Gitea
CVE-2026-20912

9.1CRITICAL

Key Information:

Vendor

Gitea

Status
Gitea Open Source Git Server
Vendor
CVE Published:
22 January 2026

What is CVE-2026-20912?

Gitea has a vulnerability that stems from inadequate validation of repository ownership when linking attachments to software releases. This allows for the possibility of an attachment uploaded to a private repository being improperly connected to a release in a public repository, which may expose sensitive information to unauthorized users. Such a flaw highlights the critical importance of robust ownership validation mechanisms to prevent potential data breaches in collaborative environments.

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Deploy the Patch

Affected Version(s)

Gitea Open Source Git Server 0 <= 1.25.3

References

https://github.com/go-gitea/gitea/security/advisories/GHS...
vendor-advisory
https://github.com/go-gitea/gitea/pull/36320
patch
https://github.com/go-gitea/gitea/pull/36355
patch

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

spingARbor
JSON
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