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CVE-2026-18329

CVE-2026-18329 · NGINX ngx_http_js_module vulnerability

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

Description NGINX JavaScript (njs) and QuickJS (qjs) engines have a vulnerability when a js_access handler performs asynchronous request body processing and an exception is thrown during asynchronous access-control evaluation before an explicit access denial is returned. An unauthenticated attacker can exploit this vulnerability by sending a crafted HTTP request that triggers an error condition in the access validation logic. This may cause the js_access phase to fail open, allowing the request to proceed instead of being denied, resulting in an authentication or authorization bypass and unauthorized access to protected resources. Impact This vulnerability may allow remote attackers to bypass js_access controls. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS 8.8 · Alta · EPSS 0,6% · Corrección disponible

Publicación
Actualización

Pila tecnológica: system

Productos y versiones afectados

  • nginx javascript

    Versiones
    • ≥ 1.0.0, < 1.0.1: Afectada (custom)
    • ≥ 0.9.9: Afectada (custom)

    Sin corrección publicada

  • libnginx-mod-js Debian:14

    Versiones
    • 0.8.9-1
    • 0.9.1-1
    • 0.9.4-1
    • 0.9.6-1
    • 0.9.8-1
    • 0.9.9-1
    • 0.9.9-2
    • 1.0.0-1
    • 1.0.0-2
    • 1.0.0-3
    • 1.0.0-4
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1.0.1-1

    Actualiza a 1.0.1-1

  • libnginx-mod-js Ubuntu:24.04:LTS

    Versiones
    • 0.7.12-2
    • 0.8.2-1ubuntu1
    Intervalos de versiones afectados
    • ECOSYSTEM: (−∞, +∞)

    Sin corrección publicada

  • libnginx-mod-js Ubuntu:26.10

    Versiones
    • 0.9.4-1build2
    • 0.9.9-2
    • 1.0.0-1
    • 1.0.0-3
    Intervalos de versiones afectados
    • ECOSYSTEM: (−∞, +∞)

    Sin corrección publicada

  • libnginx-mod-js Ubuntu:Pro:26.04:LTS

    Versiones
    • 0.9.1-1ubuntu2
    • 0.9.1-1ubuntu3
    • 0.9.4-1~build1
    • 0.9.4-1
    • 0.9.4-1build1
    • 0.9.4-1build2
    • 0.9.4-1ubuntu0.1~esm1
    Intervalos de versiones afectados
    • ECOSYSTEM: (−∞, +∞)

    Sin corrección publicada

Fuentes originales

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