Bug 2428462 (CVE-2026-0821)

Summary: CVE-2026-0821 quickjs-ng: quickjs-ng: Heap-based buffer overflow in js_typed_array_constructor function
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in quickjs-ng. A remote attacker can exploit a heap-based buffer overflow vulnerability in the `js_typed_array_constructor` function of the `quickjs.c` file by executing a specially crafted manipulation. This vulnerability may lead to information disclosure, denial of service, or potentially arbitrary code execution.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2428529, 2428531, 2428533, 2428537, 2428535    
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Description OSIDB Bzimport 2026-01-10 14:01:21 UTC 
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.