Vulnerability in Benmcollins Libjwt

CVE-2026-44699

LibJWT is a C JSON Web Token Library. From 3.0.0 to 3.3.2, libjwt accepts an RSA JWK that does not contain an alg parameter as the verification key for an HS256/HS384/HS512 token. In the OpenSSL backend, this causes HMAC verification to ru…

Vulnerability class: POODLE (CVE-2014-3566)

EPSS: 0.000 (8.2th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

References