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CVE-2026-20896

CRITICAL
9.8
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-20896
State
PUBLISHED
Assigner
Gitea
Reserved
2026-03-03 03:25 UTC
Published
2026-07-03 20:19 UTC
Last updated
2026-07-03 20:19 UTC
Primary CWE
CWE-284
CWE-284
Vendor / Product
Gitea / Gitea Open Source Git Server
Sources
cve.org  ·  NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products (1)
VendorProductPlatformVersions
Gitea Gitea Open Source Git Server — 0 ≤ 1.26.2
Weakness (CWE)
CWESourceDescription
CWE-284 cna CWE-284
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.8 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References (4)
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