Critical severity · published Feb 23, 2026
CVE-2026-2964
higuma web-audio-recorder-js Dynamic Config Handling WebAudioRecorder.js extend prototype pollution
9.8
CVSS
0.4%
EPSS
No
On KEV
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 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
web-audio-recorder-js · higuma
0.1; 0.1.1 · source: vendor
WE
Webaudiorecorder.js · Higuma
0.1; 0.1.1 · source: NVD
