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.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| node-lodash | — | 4.17.23+dfsg-1ubuntu0.1~esm1 |
References
Similar Threats
- Unknown USN-8411-1
- Unknown DEBIAN-CVE-2026-2950
- Unknown UBUNTU-CVE-2026-2950
- Unknown UBUNTU-CVE-2026-4800
- Unknown DEBIAN-CVE-2025-13465
Exploit Protection
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