CVE-2026-20896
CRITICAL
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
Jul 03, 2026
Vendor
unknown
Description
Gitea Docker image versions up to and including 1.26.2 use REVERSE_PROXY_TRUSTED_PROXIES=* by default, allowing any source IP to impersonate a user when reverse-proxy authentication headers such as X-WEBAUTH-USER are enabled.