Vulnerability intelligence

CVE-2026-20896

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.

CVSS Score

—

Critical

EPSS — Exploit Probability

32%

Riskier than 98% of all CVEs

Exploitation

Not in CISA KEV

No federal exploitation record

Remediation

unknown

Vendor fix published

NVD entry Vendor patch PoC / advisory

4 articles across 4 outlets · first covered Jun 25, 2026 · latest Jul 7, 2026

Tracked incidents

vulnerability closed 4 articles

Critical Gitea flaws (CVE-2026-20896, CVE-2026-22874) allow remote takeover

Coverage timeline

CVE-2026-20896: Gitea Docker flaw lets attackers bypass auth
securityaffairs.com · Jul 7, 2026
Critical Gitea Flaw Under Active Exploitation, Researchers Warn
www.securityweek.com · Jul 7, 2026
Attackers Exploit New Gitea Docker Bug CVE-2026-20896
thehackernews.com · Jul 6, 2026
Gitea auth flaw lets attackers hijack admin accounts via SSRF
securityonline.info · Jun 25, 2026