Vulnerability advisory

CVE-2026-26022

Gogs: Stored XSS via data URI in issue comments

Published Mar 5, 2026Updated Oct 28, 2026OSV record ↗

Also known as GHSA-xrcr-gmf5-2r8jGO-2026-4620

Severity

CVSS 3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Affected versions

Repository

Affected commits	Fixed by commit
GIT github.com/gogs/gogs ↗
All commits before 5dcb6c64bdf61e38dbdbb941c1d69789c560d0fb	`5dcb6c64bdf61e38dbdbb941c1d69789c560d0fb`
Not specified	`441c64d7bd8893b2f4e48660a8be3a7472e14291`
Also listed as affected (58) `v0.14.1-rc.1` `v0.14.1` `v0.14.0-rc.1` `v0.14.0` `latest-commit-build` `v0.11.91` `v0.11.86` `v0.11.79` `v0.11.66` `v0.11.53` `v0.11.43` `v0.11.34` `v0.11.33` `v0.11.29` `v0.11.19` `v0.11.4` `v0.11` `v0.11rc` `v0.10.18` `v0.10.8` `v0.10` `v0.10rc` `v0.9.141` `v0.9.128` `v0.9.113` `v0.9.97` `v0.9.71` `v0.9.60` `v0.9.48` `v0.9.46` `v0.9.13` `v0.9.0` `v0.8.43` `v0.8.25` `v0.8.10` `v0.8.0` `v0.7.33` `v0.7.22` `v0.7.19` `v0.7.6` `v0.7.0` `v0.6.15` `v0.6.9` `v0.6.3` `v0.6.1` `v0.5.13` `v0.5.11` `v0.5.9` `v0.5.8` `v0.5.5` `v0.5.2` `v0.5.0` `v0.4.2` `v0.4.1` `v0.4.0` `v0.3.1` `v0.3.0` `v0.2.0`

Description

Gogs is an open source self-hosted Git service. Prior to version 0.14.2, a stored cross-site scripting (XSS) vulnerability exists in the comment and issue description functionality. The application's HTML sanitizer explicitly allows data: URI schemes, enabling authenticated users to inject arbitrary JavaScript execution via malicious links. This issue has been patched in version 0.14.2.

CVE-2026-26022

Affected versions

Repository

Description

References