VULNERABILITY INTELLIGENCE

CVE-2026-57997

CVSS score6.3 MEDIUM
EPSS probability0.25%
CISA KEVNot currently listed
Published2026-06-29
Last modified2026-10-25
CVSS vectorCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Description

Strapi users-permissions plugin fails to restrict JWT algorithms when plugin::users-permissions.jwt.algorithm is not explicitly configured, allowing acceptance of HS384 and HS512 tokens alongside HS256. Attackers possessing the jwtSecret can mint tokens with non-standard HMAC variants to bypass algorithm restrictions and weaken authentication controls.

Weakness classification

  • CWE-327: Use of a Broken or Risky Cryptographic Algorithm

Primary references