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CVE Watch2 sept 2026

CVE-2026-18329

Description NGINX JavaScript (njs) and QuickJS (qjs) engines have a vulnerability when a js_access handler performs asynchronous request bo

CVSS

8.2

Alto

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 2 sept 2026 · Última mod.: 2 sept 2026 · CWE-636

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

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.

Referencias oficiales

my.f5.comhttps://my.f5.com/manage/s/article/K000162599

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