A vulnerability was identified in quickjs-ng quickjs up to version 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 Details
CVE-2026-0822 is classified as a low-severity vulnerability with a CVSS score of 2.1. The vulnerability resides in the quickjs-ng quickjs component, specifically affecting the js_typed_array_sort function. The manipulation of this function can lead to a heap-based buffer overflow, which is a critical concern for application integrity and security. The vulnerability was published on January 10, 2026.
Technical Analysis
The root cause of CVE-2026-0822 stems from improper handling of input within the js_typed_array_sort function. The attack vector is classified as network-based, with low attack complexity, meaning attackers do not require extensive resources or technical skill to exploit this vulnerability. No privileges are required to exploit this issue and user interaction is passive, as the vulnerability can be triggered without user engagement. The attack impacts confidentiality, integrity, and availability, though the overall impact is categorized as low.
Risk & Impact Analysis
Risk to organizations includes potential unauthorized access and manipulation of data handled by the quickjs component. While the overall severity is low, organizations utilizing quickjs-ng in critical applications should be aware of the risk associated with unpatched vulnerabilities. The blast radius could extend to any applications that rely on this component, leading to a broader impact in the event of exploitation. Organizations should prioritize patching immediately to mitigate risks associated with this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch are affected, specifically quickjs-ng quickjs up to version 0.11.0.
Mitigation & Remediation
Organizations should deploy the patch identified by commit 53eefbcd695165a3bd8c584813b472cb4a69fbf5 to remediate this vulnerability. In addition, organizations may consider implementing additional security measures, such as configuration hardening and network controls to limit exposure. For ongoing security validation, organizations can employ penetration testing to ensure that similar vulnerabilities are identified and mitigated.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor log indicators for abnormal function calls to js_typed_array_sort. Additionally, behavioral anomalies and unusual memory usage patterns should be investigated. Network signatures associated with known attack vectors targeting quickjs-ng should also be implemented.
AppSecure Threat Intelligence Insight
CVE-2026-0822 highlights a potential risk within quickjs-ng that may impact organizations relying on this technology. Security teams should take this opportunity to review their application security posture and consider implementing a comprehensive vulnerability management program to proactively identify and remediate vulnerabilities. Continuous monitoring and threat intelligence integration can further enhance organizational resilience against emerging threats. For organizations utilizing cloud services, a thorough review of their cloud penetration testing strategy is advised to ensure that all components are adequately protected.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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