CVE-2026-105268

Gitea issue attachment API allows changing comment attachments

State: Published
Severity: 4.3 Medium
Published: Oct 6, 2026
Updated: Oct 7, 2026
Reserved: Oct 4, 2026

Description

The Gitea API routes for issue attachments (`/api/v1/repos/{owner}/{repo}/issues/{index}/assets/{attachment_id}`) also accepted attachments that belong to comments on the issue. Because the author of an issue may edit and delete the issue's attachments, a user who opened an issue could rename or delete attachments that other users had posted in comments on that issue. The contents of the attachments could not be changed.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N	CISA-ADP

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key
CWE-863 Incorrect Authorization

Affected Products

Product	Versions
GiteaGitea	28.0.0 and earlierAffected

References

GitHub Security Advisory GHSA-96qg-qxxj-r8xqvendor-advisory
Fix: go-gitea/gitea pull request #39501patch
Fix backport to release/v28: go-gitea/gitea pull request #39507patch
Gitea 28.1.0 release announcementrelease-notes
go-gitea/gitea v28.1.0 releaserelease-notes

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.