Gogs: Authentication Bypass via Unvalidated Reverse Proxy Headers_CVE-2026-25119

7.7 / 10

HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P

Description

Gogs is an open source self-hosted Git service. Prior to 0.14.3, when ENABLE_REVERSE_PROXY_AUTHENTICATION is enabled, Gogs accepts the configured authentication header (default: X-WEBAUTH-USER) directly from client requests without validating that the request originated from a trusted reverse proxy. Any remote attacker who can reach the Gogs service can forge this header to impersonate any user or trigger automatic account creation, completely bypassing authentication. This vulnerability is fixed in 0.14.3.

Basic Information

ID CVE-2026-25119

Source GitHub_M

Published Jun 24, 2026 at 20:07

Affected Product

Vendor gogs

Product gogs

Version < 0.14.3

Affected Versions gogs gogs < 0.14.3

CWE Classification

CWE-290

References

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    "published": "2026-06-24T20:07:32.497Z",
    "modified": "2026-06-24T20:07:32.497Z",
    "type": "cve",
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