ID:12792 - Exploit for Incorrect Regular Expression in Gitea - CVE-2026-58421

Link to public exploit:

Vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing regular expressions in the CODEOWNERS feature. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Remediation