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[ CVE-2026-88378 · Published 24 Sep 2026 ]

Vulnerability

CVSS 9.8 EPSS <1%No fix listed yet

[ Why it matters ]Priority signals

  • Public proof-of-concept exploit exists (CISA SSVC)
  • Critical severity: CVSS 9.8

[ Description ]Official description

QuickJS commit 04be24600 contains a heap out-of-bounds write condition in JS_ReadFunctionTag().

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References