Vulnerability GHSA-xxjr-mmjv-4gpg
Medium Risk
MEDIUM RISK
CVSS Score: 6.5
Score Range: 4.0–6.9
Medium severity vulnerabilities (CVSS 4.0–6.9). Important issues that meaningfully reduce security confidence.
8 months ago
January 21, 2026 at 11:01 PM UTC
Lodash has Prototype Pollution Vulnerability in `_.unset` and `_.omit` functions
4.0.0 - 4.17.21
4.0.0 - 4.17.21
Summary
Lodash has Prototype Pollution Vulnerability in `_.unset` and `_.omit` functions
Details
Impact
Lodash versions 4.0.0 through 4.17.22 are vulnerable to prototype pollution in the _.unset and _.omit functions. An attacker can pass crafted paths which cause Lodash to delete methods from global prototypes.
The issue permits deletion of properties but does not allow overwriting their original behavior.
Patches
This issue is patched on 4.17.23.
Related Vulnerabilities
Other vulnerabilities affecting the same packages
High Risk
6 months ago
lodash vulnerable to Code Injection via `_.template` imports key names
4.0.0 - 4.17.23 GHSA-r5fr-rjxr-66jc
4.0.0 - 4.17.23 GHSA-r5fr-rjxr-66jc
High Risk
6 months ago
lodash vulnerable to Code Injection via `_.template` imports key names
4.0.0 - 4.17.23 GHSA-r5fr-rjxr-66jc
4.0.0 - 4.17.23 GHSA-r5fr-rjxr-66jc
High Risk
6 months ago
lodash vulnerable to Code Injection via `_.template` imports key names
4.0.0 - 4.17.23 GHSA-r5fr-rjxr-66jc
4.0.0 - 4.17.23 GHSA-r5fr-rjxr-66jc
Medium Risk
6 months ago
lodash vulnerable to Prototype Pollution via array path bypass in `_.unset` and `_.omit`
2.0.0 - 4.17.23 GHSA-f23m-r3pf-42rh
2.0.0 - 4.17.23 GHSA-f23m-r3pf-42rh
Medium Risk
6 months ago
lodash vulnerable to Prototype Pollution via array path bypass in `_.unset` and `_.omit`
2.0.0 - 4.17.23 GHSA-f23m-r3pf-42rh
2.0.0 - 4.17.23 GHSA-f23m-r3pf-42rh
Impacted packages
Timeline
Published
8 months ago
January 21, 2026 at 11:01 PM UTC
Fixed (4.17.23)
8 months ago
January 21, 2026 at 05:04 PM UTC
Fixed (4.17.23)
8 months ago
January 21, 2026 at 05:28 PM UTC
Fixed (4.17.23)
8 months ago
January 21, 2026 at 05:29 PM UTC
Last Modified
16 hours ago
October 17, 2026 at 02:55 AM UTC