XSS in Gogs
CVE-2026-26022
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.003 (22.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.
Affected products
- Gogs — versions < 0.14.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-26022?
- CVE-2026-26022 is a high-severity vulnerability in Gogs, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-03-05.
- How severe is CVE-2026-26022?
- High severity. CVSS v3 base score is 8.7 out of 10.