VULNERABILITY INTELLIGENCE
CVE-2026-20896
CVSS score9.8 CRITICAL
EPSS probability2.76%
CISA KEVNot currently listed
Published2026-07-03
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
Weakness classification
- 88ee5874-cf24-4952-aea0-31affedb7ff2: CWE-284