OCTOBER 7, 2026
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Case File

CVE-2026-88378

CRITICAL · CVSS 9.8 EPSS 0.45% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-24 · Last synced 2026-10-06

CyberRota Analysis

AI-Generated

A heap out-of-bounds write vulnerability exists in the JS_ReadFunctionTag() function of QuickJS, potentially allowing attackers to manipulate memory and execute arbitrary code. This flaw could impact any applications utilizing the affected version of QuickJS, making it critical for developers and organizations relying on this JavaScript engine to prioritize remediation efforts.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-88378
Severity
CRITICAL
CVSS
9.8
EPSS
0.45%

Original NVD Description

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