XSS in Gogs
CVE-2026-26276
Gogs is an open source self-hosted Git service. Prior to version 0.14.2, an attacker can store an HTML/JavaScript payload in a repository’s Milestone name, and when another user selects that Milestone on the New Issue page (/issues/new), a DOM-Based XSS is triggered. This issue has been patched in version 0.14.2.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (8.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.
Affected products
- Gogs — versions < 0.14.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-26276?
- CVE-2026-26276 is a high-severity vulnerability in Gogs, classified under Cross-site Scripting. CVSS score: 7.3/10. Published 2026-03-05.
- How severe is CVE-2026-26276?
- High severity. CVSS v3 base score is 7.3 out of 10.