Lodash has Prototype Pollution Vulnerability in `_.unset` and `_.omit` functions
### 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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-13465US | medium5.3 | Exploit | ||
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 met… | ||||
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references
External citations — patches, advisories, analysis.
- https://cert-portal.siemens.com/productcert/html/ssa-253495.htmlWEB
- https://github.com/lodash/lodashPACKAGE
- https://github.com/lodash/lodash/commit/edadd452146f7e4bad4ea684e955708931d84d81WEB
- https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpgWEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-13465ADVISORY
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