What is CVE-2026-28737?

CVE-2026-28737 is a high-severity vulnerability in Gitea Open Source Git Server, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-07-03.

How severe is CVE-2026-28737?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Gitea Open Source Git Server

CVE-2026-28737

Gitea versions from 1.25.0 before 1.26.0 allow stored cross-site scripting through the extensionsRequired field in glTF files rendered by the 3D file viewer.

Vulnerability class: XSS (Cross-Site Scripting)

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

Gitea Open Source Git Server — versions 1.25.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

88ee5874-cf24-4952-aea0-31affedb7ff2 (vendor-advisory)
88ee5874-cf24-4952-aea0-31affedb7ff2 (patch)
88ee5874-cf24-4952-aea0-31affedb7ff2 (release-notes)
88ee5874-cf24-4952-aea0-31affedb7ff2 (release-notes)

Frequently asked questions

What is CVE-2026-28737?: CVE-2026-28737 is a high-severity vulnerability in Gitea Open Source Git Server, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-07-03.
How severe is CVE-2026-28737?: High severity. CVSS v3 base score is 8.7 out of 10.