CVE-2026-88378

critical

Description

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

References

https://github.com/bellard/quickjs/pull/553/changes/42526037cfc0b2a94a875c0de0f4bbeaf597a542

https://github.com/bellard/quickjs/pull/553

https://github.com/bellard/quickjs/issues/549

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-86272

Details

Source: Mitre, NVD

Published: 2026-09-24

Updated: 2026-09-29

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.00448