{"id":"CVE-2026-25119","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-25119","generatedAt":"2026-10-28T04:36:42.797Z","title":"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.","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.","published":"2026-06-24T21:16:53.000Z","lastModified":"2026-06-25T18:16:38.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":7.7,"severity":"HIGH","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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-290"],"affected":[],"epss":{"score":0.00863,"percentile":0.58406,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/gogs/gogs/commit/0089c4c8e5b8d99eb6e5c8727f8f40d765f1f58a","source":"security-advisories@github.com"},{"url":"https://github.com/gogs/gogs/pull/8264","source":"security-advisories@github.com"},{"url":"https://github.com/gogs/gogs/releases/tag/v0.14.3","source":"security-advisories@github.com"},{"url":"https://github.com/gogs/gogs/security/advisories/GHSA-w6j9-vw59-27wv","source":"security-advisories@github.com"},{"url":"https://github.com/gogs/gogs/security/advisories/GHSA-w6j9-vw59-27wv","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-25119","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}