{"id":"CVE-2026-110024","published":"2026-10-18T15:16:51.417","lastModified":"2026-10-18T15:16:51.417","description":"@fastify/jwt is a JWT utility plugin for Fastify. In versions prior to 10.2.5, the top-level sign and verify methods replace the globally configured defaults with the per-call options instead of merging them, so passing any per-call option silently drops every global default that the call does not restate, including temporal protections such as token expiration and maximum accepted token age. A token signed this way carries no expiration claim and never expires, and verification stops enforcing a configured maximum age, so stale or never-expiring tokens are accepted. The route-level decorators for signing and verifying already merge options and are not affected. The issue is fixed in @fastify/jwt 10.2.5, and users should upgrade to 10.2.5 or later.","cvssScore":6.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","cwes":["CWE-613"],"vendors":[],"products":[],"references":[{"url":"https://cna.openjsf.org/security-advisories.html","tags":[]},{"url":"https://github.com/fastify/fastify-jwt/security/advisories/GHSA-f5gh-84pj-v2pg","tags":[]}],"exploitRefs":[{"url":"https://github.com/fastify/fastify-jwt/security/advisories/GHSA-f5gh-84pj-v2pg","tags":[]}],"hasPoc":true,"ai":null}