lodash vulnerable to Prototype Pollution via array path bypass in `_.unset` and `_.omit`
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
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| lodash | lodash | unaffected |
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| lodash | lodash-es | unaffected |
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| lodash | lodash-amd | unaffected |
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| lodash | lodash.unset | unaffected |
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| lodash | lodash.omit | unaffected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lodash | Lodash |
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| Lodash | Lodash.unset |
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| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4663-1 | node-lodash security update |
Debian DLA |
DLA-4820-1 | node-lodash security update |
Github GHSA |
GHSA-f23m-r3pf-42rh | lodash vulnerable to prototype pollution via array-path bypass in `_.unset`, `_.omit`, and `_.pullAt |
Ubuntu USN |
USN-8411-1 | Lodash vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.337% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | 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 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. |
| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-915 | |
| References |
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| Metrics |
threat_severity
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threat_severity
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Lodash lodash-amd
Lodash lodash-es |
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| CPEs | 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:*:* cpe:2.3:a:lodash:lodash:*:*:*:*:*:node.js:*:* |
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| Vendors & Products |
Lodash lodash-amd
Lodash lodash-es |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Lodash
Lodash lodash Lodash lodash.unset |
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| Vendors & Products |
Lodash
Lodash lodash Lodash lodash.unset |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | lodash vulnerable to Prototype Pollution via array path bypass in `_.unset` and `_.omit` | |
| Weaknesses | CWE-1321 | |
| References |
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| Metrics |
cvssV3_1
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