CVE-2026-73418
CVE-2026-73418 · NextAuth.js: getToken() throws an uncaught exception on malformed Bearer authorization headers
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
NextAuth.js provides authentication for Next.js. Prior to @auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32, the exported getToken() helper in the next-auth/jwt and @auth/core/jwt modules can throw an uncaught exception when it reads a malformed Authorization: Bearer header. When no session cookie is present, getToken() URL-decodes the bearer value before validating it, and malformed percent encoding causes decodeURIComponent() to throw instead of treating the token as invalid. Because getToken() is commonly called in API routes, middleware, and server-side request handlers, a single unauthenticated request can trigger an unhandled exception in code paths that authenticate requests, causing a per-request denial of service without exposing tokens, sessions, or other data and without bypassing authentication. This issue is fixed in @auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32.
CVSS 7.5 · Alta · EPSS 0,9% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
next-auth
- Versiones
- >= 4.0.6, <= 4.24.14: Afectada
- >= 5.0.0-beta.0, <= 5.0.0-beta.31: Afectada
Sin corrección publicada
core
- Versiones
- >= 0.1.0, < 0.41.3: Afectada
Sin corrección publicada
@auth/core npm
- Intervalos de versiones afectados
- SEMVER: ≥ 0.1.0, < 0.41.3
Actualiza a 0.41.3
next-auth npm
- Intervalos de versiones afectados
- SEMVER: ≥ 5.0.0-beta.0, < 5.0.0-beta.32
Actualiza a 5.0.0-beta.32
next-auth npm
- Intervalos de versiones afectados
- SEMVER: ≥ 4.0.6, < 4.24.15
Actualiza a 4.24.15
Fuentes originales
- https://github.com/nextauthjs/next-auth/security/advisories/GHSA-xmf8-cvqr-rfgj
- https://github.com/nextauthjs/next-auth/pull/13469
- https://github.com/nextauthjs/next-auth/commit/5bca2399a79ba8d116ca5179b4b1ebcd152e7f05
- https://github.com/nextauthjs/next-auth/commit/e707770f00c52b3479e43422b0200b059149ed53
- https://github.com/nextauthjs/next-auth/releases/tag/%40auth%2Fcore%400.41.3
- https://github.com/nextauthjs/next-auth/releases/tag/next-auth%404.24.15
- https://github.com/nextauthjs/next-auth/releases/tag/next-auth%405.0.0-beta.32
- https://nvd.nist.gov/vuln/detail/CVE-2026-73418