CVE-2026-2964
Published: 23 February 2026
Summary
CVE-2026-2964 is a medium-severity Code Injection (CWE-94) vulnerability in Higuma Webaudiorecorder.Js. Its CVSS base score is 5.0 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 19.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.
Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.
Validates inputs used in dynamic code generation to block injected directives.
Directly prevents execution of attacker-supplied code written into data memory regions.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Prototype pollution in JS library enables remote exploitation of public-facing apps (T1190) and JS command/script execution via object manipulation (T1059.007).
NVD Description
A vulnerability was identified in higuma web-audio-recorder-js 0.1/0.1.1. Impacted is the function extend in the library lib/WebAudioRecorder.js of the component Dynamic Config Handling. Such manipulation leads to improperly controlled modification of object prototype attributes. It is possible to launch the…
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attack remotely. Attacks of this nature are highly complex. The exploitability is considered difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Deeper analysisAI
CVE-2026-2964 is a prototype pollution vulnerability affecting the higuma web-audio-recorder-js library in versions 0.1 and 0.1.1. The issue resides in the extend function within lib/WebAudioRecorder.js, part of the dynamic config handling component, which allows improperly controlled modification of object prototype attributes (CWE-94, CWE-1321). This flaw enables remote attackers to manipulate prototype attributes, with a CVSS v3.1 base score of 5.0 (AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L).
The vulnerability can be exploited remotely by attackers with low privileges over the network, though it requires high attack complexity and no user interaction. Successful exploitation grants limited impact, including low confidentiality, integrity, and availability effects, such as partial data exposure, minor modifications, or slight service disruptions.
VulDB advisories, referenced at vuldb.com/?ctiid.347331, vuldb.com/?id.347331, and related submission pages, detail the issue but note that the vendor was contacted early without response, implying no official patch or mitigation guidance is available. Security practitioners should avoid using the affected library versions and monitor for updates.
Notably, a public exploit exists and might be used in targeted attacks, though exploitability is considered difficult due to its complexity. The vulnerability was published on 2026-02-23.
Details
- CWE(s)