CVE-2026-88378

9.8 criticalEPSS 0.6%

Critical (9.8). EPSS 0.6% chance of exploitation in the next 30 days.

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

Severity

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2026-09-24
Modified: 2026-09-29
Record from: the NVD, synced 2026-10-19