Missing Authorization in Gitea - CVE-2026-58438
Published: July 14, 2026
Vulnerability identifier: #VU137410
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-58438
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to tamper with issue dependency relationships and inject comments into private repositories.
The vulnerability exists due to improper access control in the RemoveDependency action in routers/web/repo/issue_dependency.go when handling issue dependency removal requests. A remote user can send a specially crafted request with a dependency issue ID to tamper with issue dependency relationships and inject comments into private repositories.
Exploitation requires write access to issues in one repository and an existing cross-repository dependency link to an issue in a private repository. No repository content is disclosed.
Affected software
Gitea
How to mitigate CVE-2026-58438
Install security update from vendor's website.
Gitea - update to 1.27.0