Use of a Broken or Risky Cryptographic Algorithm

Overview @strapi/plugin-users-permissions is a headless CMS Affected versions of this package are vulnerable to Use of a Broken or Risky Cryptographic Algorithm due to improper restriction of accepted JWT algorithms in the plugin::users-permissions.jwt.algorithm configuration. An attacker can...

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 can mint tokens with non-standard HMAC variants to bypass...

CVE-2026-57997

The CVE concerns the Strapi users-permissions plugin where JWT algorithm restrictions are not enforced if plugin::users-permissions.jwt.algorithm is not explicitly configured. This allows the server to accept HS384 and HS512 tokens alongside HS256. An attacker who possesses the jwtSecret can mint...

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 can mint tokens with non-standard HMAC variants to bypass...

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 HS512 tokens alongside HS256. Attackers possessing the jwtSecret can mint tokens with non-standard HMAC variants to bypass...

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 HS512 tokens alongside HS256. Attackers possessing the jwtSecret can mint tokens with non-standard HMAC variants to bypass...

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 HS512 tokens alongside HS256. Attackers possessing the jwtSecret can mint tokens with non-standard HMAC variants to bypass...

PT-2026-53747

Name of the Vulnerable Software and Affected Versions Strapi users-permissions plugin affected versions not specified Description The users-permissions plugin fails to restrict JSON Web Token JWT algorithms when the plugin::users-permissions.jwt.algorithm configuration is not explicitly set. This...

Exploit for Exposure of Sensitive Information to an Unauthorized Actor in Strapi

CVE-2026-27886 Automated Exploit - Usage Guide What This S...

CVE-2026-22707

Strapi is an open source headless content management system. In Strapi versions prior to 5.33.3, the Upload plugin's Content API endpoints did not enforce the administrator-configured MIME type restrictions plugin.upload.security.allowedTypes and deniedTypes. The same restrictions were correctly...

CVE-2026-27886

Strapi is an open source headless content management system. Strapi versions starting in 4.0.0 and prior to 5.37.0 did not sufficiently sanitize query parameters when filtering content via relational fields. An unauthenticated attacker could use the where query parameter on any publicly-accessibl...

CVE-2026-22599

Strapi is an open source headless content management system. In versions on the 4.x branch prior to 4.26.1 and on the 5.x branch prior to 5.33.2, a database-query injection vulnerability existed in the Strapi Content-Type Builder write API. An authenticated administrator could inject arbitrary...

Exploit for Exposure of Sensitive Information to an Unauthorized Actor in Strapi

CVE-2026-27886 Strapi PoC For authorized security testing o...

CVE-2026-27886 Vulnerability Assessment Tool

CVE-2026-27886 is an unauthenticated parameter sanitization bypass in Strapi versions 4.0.0 through 5.36.1 that allows remote, unauthenticated attackers to leak administrator secrets through the public Content API. This tool safely detects whether an instance is vulnerable without performing the...

Exploit for Exposure of Sensitive Information to an Unauthorized Actor in Strapi

CVE-2026-27886 Vulnerability Assessment Tool Safely detect wh...

Information Disclosure

strapi/strapi is vulnerable to information disclosure. The vulnerability is due to insufficient sanitization of relational query parameters in the where filter, which allows an unauthenticated attacker to perform a boolean-oracle attack against restricted adminusers table fields and potentially...

CVE-2025-64526

Strapi is an open source headless content management system. In Strapi versions prior to 5.45.0, the rate-limit middleware in the users-permissions plugin derived its rate-limit key in part from ctx.request.body.email, including on routes whose body schema does not contain an email field...

CVE-2026-27886

Strapi is an open source headless content management system. Strapi versions starting in 4.0.0 and prior to 5.37.0 did not sufficiently sanitize query parameters when filtering content via relational fields. An unauthenticated attacker could use the where query parameter on any publicly-accessibl...

CVE-2026-22706

Strapi is an open source headless content management system. In Strapi versions prior to 5.33.3, changing or resetting a user's password did not invalidate the user's existing refresh-token sessions by default. The refresh-token invalidation step in the users-permissions and admin authentication...

CVE-2026-22707

Strapi is an open source headless content management system. In Strapi versions prior to 5.33.3, the Upload plugin's Content API endpoints did not enforce the administrator-configured MIME type restrictions plugin.upload.security.allowedTypes and deniedTypes. The same restrictions were correctly...