Cross-repository IDOR in Gitea Affects User Access Controls
CVE-2026-58438

7.5HIGH

Key Information:

Vendor

Gitea

Status
Gitea Open Source Git Server
Vendor
CVE Published:
13 August 2026

What is CVE-2026-58438?

A cross-repository IDOR vulnerability in Gitea allows an attacker to manipulate and comment on private repositories without proper authorization. This flaw is rooted in inadequate access controls concerning issue dependency management, potentially allowing unauthorized activities within restricted repositories. The issue underscores the importance of implementing stringent access restrictions to safeguard sensitive data within Gitea installations.

Affected Version(s)

Gitea Open Source Git Server 0 <= 1.26.4

References

https://github.com/go-gitea/gitea/security/advisories/GHS...
vendor-advisory
https://github.com/go-gitea/gitea/releases/tag/v1.27.0
release-notes
https://blog.gitea.com/gitea-1.27.0-is-released/
release-notes

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

de3erve
.