CVE-2026-0821: medium-severity vulnerability in quickjs-ng quickjs
quickjs-ng quickjs quickjs.c js_typed_array_constructor heap-based overflow
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9epss 0.5%
A vulnerability was determined in quickjs-ng quickjs up to 0.11.0. This vulnerability affects the function js_typed_array_constructor of the file quickjs.c. Executing a manipulation can lead to heap-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called c5d80831e51e48a83eab16ea867be87f091783c5. A patch should be applied to remediate this issue.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
quickjs-ng · quickjsRelated CVEs — quickjs-ng quickjs
In the same product, most dangerous first.
CVE-2026-0822MEDIUMquickjs-ng quickjs quickjs.c js_typed_array_sort heap-based overflowEPSS 0.5%CVE-2026-1144MEDIUMquickjs-ng quickjs Atomics Ops quickjs.c use after freeEPSS 0.4%CVE-2026-1145MEDIUMquickjs-ng quickjs quickjs.c js_typed_array_constructor_ta heap-based overflowEPSS 0.4%CVE-2026-3979MEDIUMquickjs-ng quickjs quickjs.c js_iterator_concat_return use after freeEPSS 0.1%
References
https://github.com/quickjs-ng/quickjs/https://github.com/quickjs-ng/quickjs/commit/c5d80831e51e48a83eab16ea867be87f091783c5https://github.com/quickjs-ng/quickjs/issues/1296https://github.com/quickjs-ng/quickjs/issues/1296#issue-3780003395https://github.com/quickjs-ng/quickjs/pull/1299https://vuldb.com/?ctiid.340355https://vuldb.com/?id.340355https://vuldb.com/?submit.731780