{"id":"CVE-2026-101023","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-101023","generatedAt":"2026-10-28T01:41:08.619Z","title":"Gitea's OAuth2 token endpoint verified the signature and grant of a token submitted with the `refresh_token` grant type, but not that the token was a refresh token.","description":"Gitea's OAuth2 token endpoint verified the signature and grant of a token submitted with the `refresh_token` grant type, but not that the token was a refresh token. An unexpired access token for the same OAuth2 application and grant could be exchanged for a new access token and refresh token. Whoever holds such an access token could keep access beyond the token's original lifetime.","published":"2026-10-06T22:17:00.000Z","lastModified":"2026-10-13T14:39:08.000Z","status":"Analyzed","sourceIdentifier":"88ee5874-cf24-4952-aea0-31affedb7ff2","cvss":{"version":"3.1","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"cwe":["CWE-287"],"affected":["gitea/gitea"],"epss":{"score":0.00353,"percentile":0.28734,"date":"2026-10-26","history":[{"date":"2026-10-07","score":0.00168,"percentile":0.05505}]},"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 (0.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-07T22:30:11.000Z","detail":{"from":null,"score":"9.1","severity":"CRITICAL","fromSeverity":null},"summary":"Now scored CVSS 9.1 CRITICAL."},{"kind":"new","label":"New CVE","at":"2026-10-06T22:17:00.000Z","detail":{"score":null,"severity":null,"publishedAt":"2026-10-06T22:16:59.737Z"},"summary":"New CVE, critical severity (CVSS 9.1)."}],"references":[{"url":"https://blog.gitea.com/release-of-28.1.0/","tags":["Release Notes"],"source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/pull/39501","tags":["Patch"],"source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/pull/39507","tags":["Patch"],"source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/releases/tag/v28.1.0","tags":["Release Notes"],"source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-469m-x4mw-38r3","tags":["Vendor Advisory"],"source":"88ee5874-cf24-4952-aea0-31affedb7ff2"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-101023","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."}