CVE-2026-107719

Katalog CVE

CVSS 4.2 · Medium EPSS 0,23%

Kerentanan Insufficient Session Expiration. Skor CVSS 3.1 4.2 (Medium) menurut github.com.

Deskripsi (NVD)

fast-jwt provides fast JSON Web Token (JWT) implementation. Prior to 6.3.4, the fast-jwt createVerifier cache can continue accepting a previously valid, signed JWT after its exp time when caching is enabled and the token has exp but no iat. In src/verifier.js, cacheSet derives the exp cache deadline only when iat is present, so the cache falls back to cacheTTL, and a later cache hit returns the saved payload before verifyToken rechecks expiration. An attacker who can replay the same cached bearer token can extend access until the cache entry expires, but cannot forge a token through this issue. This issue is fixed in version 6.3.4.

Rincian

Terbit di NVD

8 Oktober 2026

Terakhir diubah

9 Oktober 2026

Status NVD

Deferred

CVSS 3.1

4.2 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-613: Insufficient Session Expiration

EPSS (30 hari)

0,23% peluang dieksploitasi; lebih tinggi dari 12,3% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/nearform/fast-jwt/commit/fc1ddbbe5ce38066ba2cea0b0ce0233932757167
• https://github.com/nearform/fast-jwt/releases/tag/v6.3.4
• https://github.com/nearform/fast-jwt/security/advisories/GHSA-x937-hj6v-793p