CVE-2026-2950 Affecting npm package, versions <11.12.1-r3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.07% (22nd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-NPM-15967902
  • published10 Apr 2026
  • disclosed31 Mar 2026

Introduced: 31 Mar 2026

NewCVE-2026-2950  (opens in a new tab)

How to fix?

Upgrade Chainguard npm to version 11.12.1-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream npm package and not the npm package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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 Base Scores

version 3.1