CVSS 4.0
7.7 highCVSS: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:PCVE-2026-25119
High (7.7). EPSS 0.9% chance of exploitation in the next 30 days. Fixed in gogs.io/gogs 0.14.3.
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.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
- CWE
- CWE-290
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-w6j9-vw59-27wv | Go | gogs.io/gogs | <0.14.3 | 0.14.3 |
| GO-2026-5695 | Go | gogs.io/gogs | all versions | no fix published |