CVE-2026-57997

[CVE catalog]

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.

Severity

Medium · CVSS 6.3CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

Jun 29, 2026, 10:16:49 PM UTC

Source

[NVD] · [CVE record]

EPSS

0.25% · Oct 27, 2026

{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "strapi",
      "ecosystem": "cpe",
      "fixed_version": "5.7.0"
    },
    {
      "name": "strapi",
      "ranges": [
        {
          "fixed": "5.7.0",
          "introduced": "",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "fixed_version": "5.7.0",
      "provider_record_id": "NVD-CVE-2026-57997"
    }
  ]
}