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CVE-2026-53513
CRITICAL(9.6)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Risk Signal Score34/100 — MITTEL
- CVSS 9.6 — Kritisch
- Weniger als 24 Stunden alt
Beschreibung
Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, the @better-auth/sso plugin's POST /sso/register and POST /sso/update-provider endpoints accept attacker-controlled oidcConfig.userInfoEndpoint, tokenEndpoint, and jwksEndpoint URLs when skipDiscovery: true is set, store them on the ssoProvider row without origin validation, and fetch them during OIDC callback, allowing non-blind server-side request forgery and possible account linking when trustEmailVerified: true is configured. This issue is fixed in version 1.6.11.
GitHub Advisories
GHSA-5rr4-8452-hf4vCRITICAL
@better-auth/sso provider registration has server-side request forgery via unvalidated OIDC endpoints
npm/@better-auth/sso→ 1.6.11
GitHub Advisory