CVE-2026-107353
- Source
- https://cve.org/CVERecord?id=CVE-2026-107353
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107353.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-107353
- Aliases
-
- GHSA-rj28-8w7x-jmqc
- Downstream
- Published
- 2026-10-07T19:35:15Z
- Modified
- 2026-10-09T02:49:21Z
- Severity
-
- 6.9 (Medium) CVSS_V4 - 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 CVSS Calculator
- Summary
- traverse: set() can write to built-in prototypes via an untrusted path
- 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.
- Database specific
{ "cna_assigner": "harborist", "cwe_ids": [ "CWE-1321" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107353.json" }- References
-
- https://www.npmjs.com
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107353.json
- https://github.com/ljharb/js-traverse/security/advisories/GHSA-rj28-8w7x-jmqc
- https://nvd.nist.gov/vuln/detail/CVE-2026-107353
- https://github.com/ljharb/js-traverse/commit/37a9ebd103d2a259c824c29cdcc3f0dfe1acffce
- https://github.com/ljharb/js-traverse/commit/81ccab43e379cf42eb2a5f689630f7f79b3d71b8
- https://github.com/ljharb/js-traverse
Affected packages
Git / github.com/ljharb/js-traverse
Affected ranges
- Type
- GIT
- Repo
- https://github.com/ljharb/js-traverse
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "0.3.6" }, { "fixed": "0.3.10" }, { "introduced": "0.4.0" }, { "fixed": "0.4.7" }, { "introduced": "0.5.0" }, { "fixed": "0.5.3" }, { "introduced": "0.6.0" }, { "fixed": "0.6.12" } ], "source": "AFFECTED_FIELD" }