CVE-2026-110024

@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.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://cna.openjsf.org/security-advisories.html
https://github.com/fastify/fastify-jwt/security/advisories/GHSA-f5gh-84pj-v2pg

Configurations

No configuration.

History

18 Oct 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-18 15:16

Updated : 2026-10-20 19:17

NVD link : CVE-2026-110024

Mitre link : CVE-2026-110024

CVE.ORG link : CVE-2026-110024

JSON object : View

Products Affected

No product.

CWE

CWE-613

Insufficient Session Expiration

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