Vulnerability-Lookup

FKIE_CVE-2026-2950

Vulnerability from fkie_nvd - Published: 2026-03-31 20:16 - Updated: 2026-04-07 16:12

Severity ?

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

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.

References

	URL	Tags
	ce714d77-add3-4f53-aff5-83d477b104bb	https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg	Vendor Advisory

Impacted products

Vendor	Product	Version
lodash	lodash	*
lodash	lodash-amd	*
lodash	lodash-es	*
lodash	lodash.unset	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:lodash:lodash:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "0F9E287B-784B-472D-9FA2-1469E4C8A810",
              "versionEndExcluding": "4.17.23",
              "versionStartIncluding": "4.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:lodash:lodash-amd:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "3A1B5527-B25F-49B8-A289-E964EFFCF4E4",
              "versionEndExcluding": "4.17.23",
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              "versionEndExcluding": "4.17.23",
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              "vulnerable": true
            },
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  "descriptions": [
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      "lang": "en",
      "value": "Impact:\n\nLodash 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.\n\nThe issue permits deletion of prototype properties but does not allow overwriting their original behavior.\n\nPatches:\n\nThis issue is patched in 4.18.0.\n\nWorkarounds:\n\nNone. Upgrade to the patched version."
    }
  ],
  "id": "CVE-2026-2950",
  "lastModified": "2026-04-07T16:12:25.970",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
          "version": "3.1"
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        "impactScore": 2.5,
        "source": "ce714d77-add3-4f53-aff5-83d477b104bb",
        "type": "Secondary"
      },
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          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
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        "impactScore": 1.4,
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  "references": [
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    }
  ],
  "sourceIdentifier": "ce714d77-add3-4f53-aff5-83d477b104bb",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-1321"
        }
      ],
      "source": "ce714d77-add3-4f53-aff5-83d477b104bb",
      "type": "Secondary"
    }
  ]
}

CVE-2026-2950 (GCVE-0-2026-2950)

Vulnerability from cvelistv5 – Published: 2026-03-31 19:18 – Updated: 2026-04-01 13:43

Title

lodash vulnerable to Prototype Pollution via array path bypass in `_.unset` and `_.omit`

Summary

Severity ?

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CWE

CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Assigner

openjs

References

1 reference

URL	Tags
https://github.com/lodash/lodash/security/advisor…

Impacted products

4 products

Vendor	Product	Version
lodash	lodash	Affected: 4.17.23 , < 4.18.0 (semver) Unaffected: 4.18.0 (semver)
lodash	lodash-es	Affected: 4.17.23 , < 4.18.0 (semver) Unaffected: 4.18.0 (semver)
lodash	lodash-amd	Affected: 4.17.23 , < 4.18.0 (semver) Unaffected: 4.18.0 (semver)
lodash	lodash.unset	Affected: 4.0.0 , < 4.18.0 (semver) Unaffected: 4.18.0 (semver)

Credits

Haruna38 shpik-kr maru1009 ott3r07 zolbooo backuardo falsyvalues jonchurch jdalton UlisesGascon

Show details on NVD website

JSON

To clipboard

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                "role": "CISA Coordinator",
                "timestamp": "2026-04-01T13:43:14.280375Z",
                "version": "2.0.3"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-2950

CVE-2026-2950 (GCVE-0-2026-2950)

Tags

Sightings

Nomenclature