What is CVE-2026-57997?

CVE-2026-57997 is a medium-severity vulnerability in Strapi, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 4.8/10. Published 2026-06-29.

How severe is CVE-2026-57997?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Vulnerability in Strapi

CVE-2026-57997

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 c…

Vulnerability class: POODLE (CVE-2014-3566)

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Strapi — versions 0

Weakness classification (CWE)

CWE-327 — Use of a Broken or Risky Cryptographic Algorithm

References

disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-57997?: CVE-2026-57997 is a medium-severity vulnerability in Strapi, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 4.8/10. Published 2026-06-29.
How severe is CVE-2026-57997?: Medium severity. CVSS v3 base score is 4.8 out of 10.