CVE-2026-20912

CVE-2026-20912: Gitea: Cross-Repository Authorization Bypass via Release Attachment Linking Leads to Private Attachment Disclosure

Vendor Gitea

Product Gitea Open Source Git Server

Weakness CWE-284

Published January 22, 2026

Last update June 29, 2026

View on NVD All CVEs

CVSS base score

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What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 22, 2026 CVE published

June 29, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-20912 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/284.html