CVE-2026-120439: QuickJS-NG before 0.16.0 Heap Buffer Overflow via TypedArray.prototype.sort
quickjs-ng · QuickJS-NG
Fixed in 0.16.0 · Affected: QuickJS-NG before 0.16.0 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 28% of scored CVEs
DescriptionCVE.org
QuickJS-NG before 0.16.0 contains an integer overflow in js_typed_array_sort() in quickjs.c that allows attackers to cause a heap buffer overflow on 32-bit hosts. Attackers who can run JavaScript can call TypedArray.prototype.sort with a comparator on a typed array near 2^30 elements, wrapping the allocation size and writing indices past the buffer to crash or potentially execute code.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- quickjs-ng · QuickJS-NGbefore 0.16.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- quickjs-ng
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-120439 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.