CVE-2026-0821

A vulnerability was determined in quickjs-ng quickjs up to 0.11.0. This vulnerability affects the function jstypedarray_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.

References

Affected packages

Git / github.com/quickjs-ng/quickjs

Affected ranges

Type: GIT
Repo: https://github.com/quickjs-ng/quickjs
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

c5d80831e51e48a83eab16ea867be87f091783c5

Affected versions

v0.*

v0.1.0

v0.10.0

v0.10.1

v0.11.0

v0.2.0

v0.3.0

v0.4.0

v0.4.1

v0.5.0

v0.6.0

v0.6.1

v0.7.0

v0.8.0

v0.9.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-0821.json"

vanir_signatures

[
    {
        "source": "https://github.com/quickjs-ng/quickjs/commit/c5d80831e51e48a83eab16ea867be87f091783c5",
        "digest": {
            "line_hashes": [
                "156966015778241022997155822889589072122",
                "327637216839275509669170862799182210209",
                "20361890462439713804690032294639562237",
                "236119915891077895144408613444768543000"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Line",
        "target": {
            "file": "quickjs.c"
        },
        "id": "CVE-2026-0821-748b75a9"
    },
    {
        "source": "https://github.com/quickjs-ng/quickjs/commit/c5d80831e51e48a83eab16ea867be87f091783c5",
        "digest": {
            "length": 1800.0,
            "function_hash": "284441466894633094989861512996126270919"
        },
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Function",
        "target": {
            "file": "quickjs.c",
            "function": "js_typed_array_constructor"
        },
        "id": "CVE-2026-0821-f21fd842"
    }
]