Medium
JSONPath vulnerable to Prototype Pollution due to insufficient input validation of object keys in lib/index.js
The value function in jsonpath 1.1.1 lib/index.js is vulnerable to Prototype Pollution.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | jsonpath | < 1.2.0 | 1.2.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-61140
- https://github.com/dchester/jsonpath/issues/181
- https://github.com/dchester/jsonpath/issues/194
- https://github.com/dchester/jsonpath/pull/195
- https://github.com/dchester/jsonpath/commit/9631412641b7095f86840a7a45b5b3afc68b0fcb
- https://gist.github.com/Dremig/8105c189774217222a8ebea3ed4d341d
- https://github.com/dchester/jsonpath
CVSS score
-
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U- Weakness (CWE)
CWE-1321- Platform
- npm
- Package
jsonpath- Disclosed
- 28.01.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-6c59-mwgh-r2x6 - CC BY 4.0
Vulnerability history: jsonpath
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 01.2026 02.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 1
Disclosures per year
- 2026: 2
-
JSONPath vulnerable to Prototype Pollution due to insufficient input validation of object keys in lib/index.js this entry
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