Open redirect in Gitea - CVE-2026-25779
Published: June 22, 2026
Vulnerability identifier: #VU135002
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-25779
CWE-ID: CWE-601
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: The Gitea Authors
Affected software:
Gitea
Gitea
Detailed vulnerability description
The vulnerability allows a remote attacker to redirect users to an arbitrary website.
The vulnerability exists due to open redirect in the redirect_to parameter when processing login requests. A remote attacker can supply a crafted redirect_to value using directory traversal sequences and a backslash to redirect users to an arbitrary website.
Successful exploitation occurs after the victim logs in using a crafted link.
How to mitigate CVE-2026-25779
Install security update from vendor's website.