CVE-2026-57997 — Strapi users-permissions - JWT Algorithm Confusion via Missing Algorithm Configuration
Strapi users-permissions plugin fails to restrict JWT algorithms when plugin::users-permissions.jwt.algorithm is not explicitly configured, allowing acceptance of HS384 and HS51…
Published: 2026-06-29 · CVSS: 6.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7