{"id":"CVE-2026-78231","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-78231","generatedAt":"2026-10-28T03:58:42.439Z","title":"An attacker controls the destination and much of the form body, allowing interaction with internal HTTP services reachable from the Gitea server.","description":"When OpenID sign-in is enabled, Gitea processes unauthenticated assertion parameters and sends an HTTP POST request to the caller-supplied OpenID provider endpoint during verification. An attacker controls the destination and much of the form body, allowing interaction with internal HTTP services reachable from the Gitea server. The response is not returned to the attacker, so the issue is blind SSRF; its impact depends on the services and network addresses the server can reach.","published":"2026-10-14T15:17:26.000Z","lastModified":"2026-10-18T14:16:56.000Z","status":"Deferred","sourceIdentifier":"88ee5874-cf24-4952-aea0-31affedb7ff2","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-918"],"affected":[],"epss":{"score":0.00257,"percentile":0.17252,"date":"2026-10-27","history":[{"date":"2026-10-15","score":0.00168,"percentile":0.05679}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.26%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-18T15:45:09.000Z","detail":{"from":null,"score":"5.3","severity":"MEDIUM","fromSeverity":null},"summary":"Now scored CVSS 5.3 MEDIUM."},{"kind":"new","label":"New CVE","at":"2026-10-14T15:17:26.000Z","detail":{"score":null,"severity":null,"publishedAt":"2026-10-14T15:17:25.533Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"references":[{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-8vmh-w35x-73qr","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-78231","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."}