CVE-2026-2950
Published: Mar 31, 2026
Modified: Apr 1, 2026
CVSS v3.1
6.5
Description
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.
| Vendor | Product | Versions |
|---|---|---|
lodash | lodash | affected 4.17.23 - < 4.18.0unaffected 4.18.0 |
lodash | lodash-es | affected 4.17.23 - < 4.18.0unaffected 4.18.0 |
lodash | lodash-amd | affected 4.17.23 - < 4.18.0unaffected 4.18.0 |
lodash | lodash.unset | affected 4.0.0 - < 4.18.0unaffected 4.18.0 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now