Authorization bypass through user-controlled key in Gitea - CVE-2026-58445
Published: July 14, 2026
Vulnerability identifier: #VU137419
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-58445
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose limited sensitive information.
The vulnerability exists due to authorization bypass through user-controlled key in the DeleteIssueLabel API endpoint when handling DELETE requests for issue labels by ID. A remote privileged user can send a specially crafted request with arbitrary label IDs to disclose limited sensitive information.
The issue creates an oracle in which response status distinguishes whether a label ID exists anywhere on the instance, including labels in repositories or organizations the user cannot access. No cross-repository write occurs, and no label name, color, or owning repository is disclosed.
Affected software
Gitea
How to mitigate CVE-2026-58445
Install security update from vendor's website.
Gitea - update to 1.27.0