9.8

CVE-2026-20896

Media report

Gitea Docker image trusts spoofable reverse-proxy headers by default

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.
Data is provided by the CVE programme from a CVE Numbering Authority (CNA) (unstructured).
VendorGitea
≫
Product Gitea Open Source Git Server
Default Statusunaffected
Version <= 1.26.2
Version 0
Status affected
No warning was found for this CVE.
EPSS Metrics
Type Source Score Percentile
EPSS FIRST.org 0.78% 0.516
CVSS Metrics
Source Base Score Exploit Score Impact Score Vector string
88ee5874-cf24-4952-aea0-31affedb7ff2 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-284 Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

A VulnDex account is required to access Vulnerability Intelligence.
VulnDex Intel
Media Report
10.07.2026 18:07
A VulnDex account is required to access Vulnerability Intelligence.
VulnDex Intel
Media Report
06.07.2026 19:18
A VulnDex account is required to access Vulnerability Intelligence.
VulnDex Intel
Media Report
06.07.2026 15:32
https://github.com/go-gitea/gitea/pull/38151
https://github.com/go-gitea/gitea/releases/tag/v1.26.3
https://blog.gitea.com/release-of-1.26.3-and-1.26.4/
https://github.com/go-gitea/gitea/security/advisories/GHSA-f75j-4cw6-rmx4