The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution. The fix for CVE-2025-13465 only guards against string key members, so an attacker can bypass the check by passing array-wrapped path segments. This allows del…
Exact source revision recorded 25 Oct 2026 07:19:08 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2026-2950
PublishedThe _.unset and _.omit functions in Lodash are vulnerable to prototype pollution. The fix for CVE-2025-13465 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. The issue is patched from 4.18.0 to 4.18.1 depending on the package: lodash, lodash-es, and lodash-amd in 4.18.1, and the standalone lodash.unset and lodash.omit packages in 4.18.0.
NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Modified
Weakness classifications: CWE-1321
Original publisher date fields
published: 2026-03-31T20:16:26.207
lastModified: 2026-10-15T07:18:00.143
4 source CPE criteria · context only
- 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:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
- Source published
- 31 Mar 2026 20:16:26 UTC
- Source modified
- 15 Oct 2026 07:18:00 UTC
- Observed here
- 25 Oct 2026 07:19:08 UTC
- Source terms
- NIST NVD usage terms; underlying source attribution retained
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 3.1 · ce714d77-add3-4f53-aff5-83d477b104bb · Secondary · 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CVSS 3.1 · [email protected] · Primary · 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N