{"cve":"CVE-2026-25119","nvd":{"published":"2026-06-24T21:16:52.903","modified":"2026-06-25T18:16:37.750","status":"Deferred","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.","cvss_v4":{"vector":"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","score":7.7},"cvss_v3":null,"cwes":["CWE-290"],"references":["https://github.com/gogs/gogs/commit/0089c4c8e5b8d99eb6e5c8727f8f40d765f1f58a","https://github.com/gogs/gogs/pull/8264","https://github.com/gogs/gogs/releases/tag/v0.14.3","https://github.com/gogs/gogs/security/advisories/GHSA-w6j9-vw59-27wv","https://github.com/gogs/gogs/security/advisories/GHSA-w6j9-vw59-27wv"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:41:17.107060303+00:00"},"epss":{"cve":"CVE-2026-25119","score":0.00863,"percentile":0.58615,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-w6j9-vw59-27wv","url":"https://osv.dev/vulnerability/GHSA-w6j9-vw59-27wv","summary":"Gogs has an Authentication Bypass via Unvalidated Reverse Proxy Headers","modified":"2026-07-21T13:30:33.246505499Z","packages":[{"ecosystem":"Go","name":"gogs.io/gogs","purl":"pkg:golang/gogs.io/gogs","ranges":["<0.14.3"],"fixed":["0.14.3"]}]},{"id":"GO-2026-5695","url":"https://osv.dev/vulnerability/GO-2026-5695","summary":"Gogs has an Authentication Bypass via Unvalidated Reverse Proxy Headers in gogs.io/gogs","modified":"2026-06-25T23:01:27.999447753Z","packages":[{"ecosystem":"Go","name":"gogs.io/gogs","purl":"pkg:golang/gogs.io/gogs","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}