Vulnerability-Lookup

UBUNTU-CVE-2026-107353 (CVE-2026-107353)

Vulnerability from osv_ubuntu – Published: 2026-10-08 00:00 – Updated: 2026-10-08 00:00 – Source website

Details

traverse (npm) versions 0.3.6 through 0.3.9, 0.4.0 through 0.4.6, 0.5.0 through 0.5.2, and 0.6.0 through 0.6.11 allow prototype pollution through set(). When the path passed to set() crosses a primitive value, the next path segment is resolved on that primitive's built-in prototype, so an application that passes an untrusted path to set() lets an attacker add or overwrite properties of String.prototype, Number.prototype, or Boolean.prototype using plain JSON data, for example traverse({ name: 'bob' }).set(['name', 'proto', 'polluted'], 'yes'). Object.prototype was reachable only with a non-data path segment, such as an object whose toString returns a different value on each call, or through a Proxy that accepts an assignment without storing it. This is fixed in 0.3.10, 0.4.7, 0.5.3, and 0.6.12.

Severity

6.5 (Medium)


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

6.9 (Medium)


                    
                      CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-107353	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-107353	REPORT
	https://github.com/ljharb/js-traverse/security/ad…	REPORT
	https://github.com/ljharb/js-traverse/commit/81cc…	REPORT
	https://github.com/ljharb/js-traverse/commit/37a9…	REPORT
	https://github.com/ljharb/js-traverse/commit/37a9…	REPORT
	https://github.com/ljharb/js-traverse/commit/81cc…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjs-traverse",
            "binary_version": "0.6.1-1"
          },
          {
            "binary_name": "node-traverse",
            "binary_version": "0.6.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "node-traverse",
        "purl": "pkg:deb/ubuntu/node-traverse@0.6.1-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjs-traverse",
            "binary_version": "0.6.6-1"
          },
          {
            "binary_name": "node-traverse",
            "binary_version": "0.6.6-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "node-traverse",
        "purl": "pkg:deb/ubuntu/node-traverse@0.6.6-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.1-1",
        "0.6.6-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjs-traverse",
            "binary_version": "0.6.6-2"
          },
          {
            "binary_name": "node-traverse",
            "binary_version": "0.6.6-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "node-traverse",
        "purl": "pkg:deb/ubuntu/node-traverse@0.6.6-2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.6-1.1",
        "0.6.6-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjs-traverse",
            "binary_version": "0.6.6+~0.6.32-1"
          },
          {
            "binary_name": "node-traverse",
            "binary_version": "0.6.6+~0.6.32-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "node-traverse",
        "purl": "pkg:deb/ubuntu/node-traverse@0.6.6+~0.6.32-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.6-2",
        "0.6.6+~0.6.32-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjs-traverse",
            "binary_version": "0.6.7+~0.6.32-1"
          },
          {
            "binary_name": "node-traverse",
            "binary_version": "0.6.7+~0.6.32-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "node-traverse",
        "purl": "pkg:deb/ubuntu/node-traverse@0.6.7+~0.6.32-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.7+~0.6.32-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libjs-traverse",
            "binary_version": "0.6.7+~0.6.32-1"
          },
          {
            "binary_name": "node-traverse",
            "binary_version": "0.6.7+~0.6.32-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "node-traverse",
        "purl": "pkg:deb/ubuntu/node-traverse@0.6.7+~0.6.32-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.7+~0.6.32-1"
      ]
    }
  ],
  "aliases": [],
  "details": "traverse (npm) versions 0.3.6 through 0.3.9, 0.4.0 through 0.4.6, 0.5.0 through 0.5.2, and 0.6.0 through 0.6.11 allow prototype pollution through set(). When the path passed to set() crosses a primitive value, the next path segment is resolved on that primitive\u0027s built-in prototype, so an application that passes an untrusted path to set() lets an attacker add or overwrite properties of String.prototype, Number.prototype, or Boolean.prototype using plain JSON data, for example traverse({ name: \u0027bob\u0027 }).set([\u0027name\u0027, \u0027__proto__\u0027, \u0027polluted\u0027], \u0027yes\u0027). Object.prototype was reachable only with a non-data path segment, such as an object whose toString returns a different value on each call, or through a Proxy that accepts an assignment without storing it. This is fixed in 0.3.10, 0.4.7, 0.5.3, and 0.6.12.",
  "id": "UBUNTU-CVE-2026-107353",
  "modified": "2026-10-08T00:00:00Z",
  "published": "2026-10-08T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-107353"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-107353"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ljharb/js-traverse/security/advisories/GHSA-rj28-8w7x-jmqc"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ljharb/js-traverse/commit/81ccab43e379cf42eb2a5f689630f7f79b3d71b8"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ljharb/js-traverse/commit/37a9ebd103d2a259c824c29cdcc3f0dfe1acffce"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ljharb/js-traverse/commit/37a9ebd103d2a259c824c29cdcc3f0dfe1acffce"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ljharb/js-traverse/commit/81ccab43e379cf42eb2a5f689630f7f79b3d71b8"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-107353"
  ]
}

CVE-2026-107353 (GCVE-0-2026-107353)

Vulnerability from cvelistv5 – Published: 2026-10-07 19:35 – Updated: 2026-10-07 20:37

Title

traverse: set() can write to built-in prototypes via an untrusted path

Summary

traverse (npm) versions 0.3.6 through 0.3.9, 0.4.0 through 0.4.6, 0.5.0 through 0.5.2, and 0.6.0 through 0.6.11 allow prototype pollution through set(). When the path passed to set() crosses a primitive value, the next path segment is resolved on that primitive's built-in prototype, so an application that passes an untrusted path to set() lets an attacker add or overwrite properties of String.prototype, Number.prototype, or Boolean.prototype using plain JSON data, for example traverse({ name: 'bob' }).set(['name', '__proto__', 'polluted'], 'yes'). Object.prototype was reachable only with a non-data path segment, such as an object whose toString returns a different value on each call, or through a Proxy that accepts an assignment without storing it. This is fixed in 0.3.10, 0.4.7, 0.5.3, and 0.6.12.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-07 20:36 UTC

CWE

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

Assigner

harborist CNA under the redhat root

CNA scorecard B 85/100 over 12 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/ljharb/js-traverse/security/ad…	vendor-advisory
https://github.com/ljharb/js-traverse/commit/81cc…	patch
https://github.com/ljharb/js-traverse/commit/37a9…	patch

Impacted products

1 product

Vendor	Product	Version
ljharb	traverse	Affected: 0.3.6 , < 0.3.10 (semver) Affected: 0.4.0 , < 0.4.7 (semver) Affected: 0.5.0 , < 0.5.3 (semver) Affected: 0.6.0 , < 0.6.12 (semver)

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-107353",
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                  },
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                "timestamp": "2026-10-07T20:36:56.178663Z",
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    "cna": {
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              "name": "set"
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

UBUNTU-CVE-2026-107353 (CVE-2026-107353)

CVE-2026-107353 (GCVE-0-2026-107353)

Tags

Sightings

Nomenclature

Related by attack behaviour