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Description

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.

PUBLISHED Reserved 2026-01-09 | Published 2026-01-10 | Updated 2026-01-10 | Assigner VulDB




MEDIUM: 6.9CVSS: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
HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C

Problem types

Heap-based Buffer Overflow

Memory Corruption

Product status

0.1
affected

0.2
affected

0.3
affected

0.4
affected

0.5
affected

0.6
affected

0.7
affected

0.8
affected

0.9
affected

0.10
affected

0.11.0
affected

Timeline

2026-01-09:Advisory disclosed
2026-01-09:VulDB entry created
2026-01-09:VulDB entry last update

Credits

mcsky23 (VulDB User) reporter

References

vuldb.com/?id.340355 (VDB-340355 | quickjs-ng quickjs quickjs.c js_typed_array_constructor heap-based overflow) vdb-entry technical-description

vuldb.com/?ctiid.340355 (VDB-340355 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.731780 (Submit #731780 | quickjs-ng quickjs v0.11.0 Heap-based Buffer Overflow) third-party-advisory

github.com/quickjs-ng/quickjs/issues/1296 issue-tracking

github.com/quickjs-ng/quickjs/pull/1299 issue-tracking

github.com/quickjs-ng/quickjs/issues/1296 exploit issue-tracking

github.com/...ommit/c5d80831e51e48a83eab16ea867be87f091783c5 patch

cve.org (CVE-2026-0821)

nvd.nist.gov (CVE-2026-0821)

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