CVE-2025-69653: Quickjs Project Quickjs

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

A crafted JavaScript input can trigger an internal assertion failure in QuickJS release 2025-09-13, fixed in commit 1dbba8a88eaa40d15a8a9b70bb1a0b8fb5b552e6 (2025-12-11), in file gc_decref_child in quickjs.c, when executed with the qjs interpreter using the -m option. This leads to an abort (SIGABRT) during garbage collection and causes a denial-of-service.

Affected products

• Quickjs Project Quickjs: from 2025-09-13, before 2025-12-11 (fixed in 2025-12-11)

Published 2026-03-06. Last modified 2026-06-17.