Buffer overflow in Quickjs-Ng Quickjs
CVE-2026-0822
A vulnerability was identified in quickjs-ng quickjs up to 0.11.0. This issue affects the function js_typed_array_sort of the file quickjs.c. The manipulation leads to heap-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The identifier of the patch is 53eefbcd695165a3bd8c584813b472cb4a69fbf5. To fix this issue, it is recommended to deploy a patch.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (37.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000
Affected products
- Quickjs-Ng Quickjs — versions 0.1, 0.2, 0.3
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/quickjs-ng/quickjs/issues/1297 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- github.com/quickjs-ng/quickjs/pull/1298 (issue-tracking, Issue Tracking)
- github.com/quickjs-ng/quickjs/issues/1297 (issue-tracking, Exploit, exploit, Issue Tracking, Vendor Advisory)
- github.com/quickjs-ng/quickjs/commit/53eefbcd695165a3bd8c584813b472cb4a69fbf5 (Patch, patch)
- github.com/quickjs-ng/quickjs/ (product)
Frequently asked questions
- What is CVE-2026-0822?
- CVE-2026-0822 is a medium-severity vulnerability in Quickjs-Ng Quickjs, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.3/10. Published 2026-01-10.
- How severe is CVE-2026-0822?
- Medium severity. CVSS v3 base score is 6.3 out of 10.