CVE-2026-57997
mediumpriority · track · 22OT risk · elevatedEPSS 0.002 · 15 %ileEUUSEPSS · scored 2026-10-24
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.7–6.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://github.com/strapi/strapicnnvd
- https://github.com/strapi/strapi/issues/26587cnnvd
- https://github.com/strapi/strapi/pull/26752cnnvd
- https://github.com/strapi/strapi/releasesPatchcnnvd
- https://www.vulncheck.com/advisories/strapi-users-permissions-jwt-algorithm-confusion-via-missing-algorithm-configurationcnnvd
- https://github.com/strapi/strapienisa_euvd
- https://github.com/strapi/strapi/issues/26587enisa_euvd
- https://github.com/strapi/strapi/pull/26752enisa_euvd
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