Gogs up to 0.14.2 authentication spoofing

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k1.21-

Summaryinfo

A vulnerability classified as critical has been found in Gogs up to 0.14.2. This impacts an unknown function. The manipulation leads to authentication spoofing. This vulnerability is uniquely identified as CVE-2026-25119. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Gogs up to 0.14.2. This issue affects some unknown processing. The manipulation with an unknown input leads to a authentication spoofing vulnerability. Using CWE to declare the problem leads to CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-25119 since 01/29/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 0.14.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 0089c4c8e5b8d99eb6e5c8727f8f40d765f1f58a is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-2013). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Open Source Gogs

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Gogs 0.14.3
Patch: 0089c4c8e5b8d99eb6e5c8727f8f40d765f1f58a

Timelineinfo

01/29/2026 CVE reserved
06/25/2026 +146 days Advisory disclosed
06/25/2026 +0 days VulDB entry created
06/25/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-w6j9-vw59-27wv
Status: Confirmed

CVE: CVE-2026-25119 (🔒)
GCVE (CVE): GCVE-0-2026-25119
GCVE (VulDB): GCVE-100-373547
CERT Bund: WID-SEC-2026-2013 - Gogs: Mehrere Schwachstellen

Entryinfo

Created: 06/25/2026 05:42
Updated: 06/25/2026 11:59
Changes: 06/25/2026 05:42 (69), 06/25/2026 11:59 (6)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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