CVE-2026-28737 PUBLISHED

Gitea 3D file viewer allows stored XSS through glTF extensionsRequired

Assigner: Gitea
Reserved: 03.03.2026 Published: 03.07.2026 Updated: 03.07.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CVSS Score: 8.7

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	Required	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Gitea
Product	Gitea Open Source Git Server
Versions	Default: unaffected affected from 1.25.0 to 1.26.0 (excl.)

Credits

yonatan-pl reporter

References

GitHub Security Advisory
GitHub Pull Request #37233
Gitea v1.26.0 Release
Gitea v1.26.0 Release Blog Post

Problem Types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE