PoC Index

CVE-2026-20896

CRITICAL 9.8EPSS 2.8%

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 v3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
2.76% chance of exploitation in the next 30 days, 85th percentile
Nuclei
critical · CWE-290
Published
2026-07-03
Updated
2026-07-07

Proof-of-concept exploits (7)

Nuclei templates (1)

References

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