CVE-2026-2950
lodash: Lodash: Prototype pollution allows deletion of built-in prototype properties via array path bypass
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 1, 2026
Updated · October 27, 2026
Description
A flaw was found in Lodash. An attacker can exploit a prototype pollution vulnerability in the _.unset and _.omit functions by bypassing a security check. This bypass is achieved by providing array-wrapped path segments, which allows for the deletion of properties from built-in JavaScript prototypes such as Object.prototype. This could lead to unexpected application behavior or denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-915 · Improperly Controlled Modification of Dynamically-Determined Object Attributes