CVE-2026-2950

Impact: Lodash versions 4.17.23 and earlier are vulnerable to prototype pollution in the _.unset and _.omit functions. The fix for (CVE-2025-13465: https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg) only guards against string key members, so an attacker can bypass the check by passing array-wrapped path segments. This allows deletion of properties from built-in prototypes such as Object.prototype, Number.prototype, and String.prototype. The issue permits deletion of prototype properties but does not allow overwriting their original behavior. Patches: This issue is patched in 4.18.0. Workarounds: None. Upgrade to the patched version.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:lodash:lodash::::::node.js::*
	cpe:2.3:a:lodash:lodash-amd::::::node.js::*
	cpe:2.3:a:lodash:lodash-es::::::node.js::*
	cpe:2.3:a:lodash:lodash.unset::::::node.js::*

History

07 Apr 2026, 16:12

Type	Values Removed	Values Added
CPE		cpe:2.3:a:lodash:lodash-amd::::::node.js::* cpe:2.3:a:lodash:lodash-es::::::node.js::* cpe:2.3:a:lodash:lodash.unset::::::node.js::* cpe:2.3:a:lodash:lodash::::::node.js::*
First Time		Lodash lodash.unset Lodash lodash-es Lodash Lodash lodash-amd Lodash lodash
References	~~() https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg -~~	() https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg - Vendor Advisory

31 Mar 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-31 20:16

Updated : 2026-04-07 16:12

NVD link : CVE-2026-2950

Mitre link : CVE-2026-2950

CVE.ORG link : CVE-2026-2950

JSON object : View

Products Affected

lodash

lodash-amd
lodash.unset
lodash
lodash-es

CWE

CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

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