CVE-2025-69653 Denial of service in n/a

Medium 6.5 Published Updated

Crafted JavaScript input triggers an assertion failure in QuickJS when using the -m option, causing a denial of service via abort.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-69653?

CVE-2025-69653 is a medium-severity denial of service vulnerability in n/a, published on 6 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-617

Which versions are affected by CVE-2025-69653?

It affects 1 product.

Products include Quickjs Project Quickjs.

How do I fix CVE-2025-69653?

No fix has been published for CVE-2025-69653 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-69653 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-69653 exists.

Sources

Also known as DEBIAN-CVE-2025-69653, GHSA-8q73-2fwv-c9pp, UBUNTU-CVE-2025-69653.

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