{"id":"EUVD-2026-25272","revision":"5df7289ad4824989b3a519f028706ea8","records":[{"revision":"5df7289ad4824989b3a519f028706ea8","observedAt":"2026-10-28T05:07:15.459+00:00","statement":{"source":"euvd","id":"EUVD-2026-25272","aliases":["CVE-2026-41213"],"title":"@node-oauth/oauth2-server is a module for implementing an OAuth2 server in Node.js. The token exchange path accepts RFC7636-invalid code_verifier values (including one-character strings) for S256 PKCE flows. Because short/weak verifiers are…","description":"@node-oauth/oauth2-server is a module for implementing an OAuth2 server in Node.js. The token exchange path accepts RFC7636-invalid code_verifier values (including one-character strings) for S256 PKCE flows. Because short/weak verifiers are accepted and failed verifier attempts do not consume the authorization code, an attacker who intercepts an authorization code can brute-force code_verifier guesses online until token issuance succeeds.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":5.9,"severity":null}],"references":["https://github.com/node-oauth/node-oauth2-server/security/advisories/GHSA-jhm7-29pj-4xvf"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-25272","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Apr 23, 2026, 6:33:42 PM","dateUpdated":"Apr 25, 2026, 1:23:58 AM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-25272","identifiers":["EUVD-2026-25272","CVE-2026-41213"]},"retained":false,"historicalAffected":[]}],"coverage":[]}