CVE-2026-1145 quickjs-ng quickjs quickjs.c js_typed_array_constructor_ta heap-based overflow
A heap-based buffer overflow in the quickjs-ng JavaScript engine allows remote attackers to execute arbitrary code or cause denial of service.
- 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
- Available
What is CVE-2026-1145?
CVE-2026-1145 is a medium-severity memory corruption vulnerability in quickjs-ng quickjs, published on 19 Jan 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 flaw has been found in quickjs-ng quickjs up to 0.11.0. Affected by this vulnerability is the function js_typed_array_constructor_ta of the file quickjs.c. This manipulation causes heap-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: 53aebe66170d545bb6265906fe4324e4477de8b4. It is suggested to install a patch to address this issue.
Which versions are affected by CVE-2026-1145?
It affects 1 product.
Products include Quickjs-Ng Quickjs.
How do I fix CVE-2026-1145?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-1145 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1145 exists.
Other vulnerabilities in quickjs-ng quickjs
- CVE-2026-0821 quickjs-ng quickjs quickjs.c js_typed_array_constructor heap-based overflow
- CVE-2025-46688 Memory corruption in QuickJS
- CVE-2026-1144 quickjs-ng quickjs Atomics Ops quickjs.c use after free
- CVE-2026-0822 quickjs-ng quickjs quickjs.c js_typed_array_sort heap-based overflow
- CVE-2024-13903 quickjs-ng QuickJS qjs quickjs.c JS_GetRuntime stack-based overflow
Sources
Also known as ALPINE-CVE-2026-1145, DEBIAN-CVE-2026-1145, GHSA-jqv9-g2ph-pfw9.