CVE-2025-61140: Jsonpath JSONPath Vulnerable To Prototype Pollution Vulnerability

MODERATE
Advisory Identifier: GHSA-6c59-mwgh-r2x6
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CWE-1321
Published
Advisory Summary

CVE-2025-61140 is a MODERATE jsonpath vulnerable to prototype pollution vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Jsonpath libraries in the npm ecosystem. The issue involves jsonpath vulnerable to prototype pollution due to insufficient input validation of object keys in lib/index.js. Remediation is available by upgrading affected packages to version 1.2.0.

CVE-2025-61140 at a Glance

CVE Identifier CVE-2025-61140
GHSA Identifier GHSA-6c59-mwgh-r2x6
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Jsonpath
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2025-61140

To remediate this vulnerability, upgrade all affected Jsonpath dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

jsonpath fixed: 1.2.0 
npm install jsonpath@1.2.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls jsonpath

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-61140, inspect your project dependencies using npm:

npm ls jsonpath

Analyze the terminal output to locate any version of Jsonpath in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.2.0), your application is affected.

Note: The npm ls jsonpath command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'), where the product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. In Jsonpath, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

The value function in jsonpath 1.1.1 lib/index.js is vulnerable to Prototype Pollution.

CVE-2025-61140 Affected Jsonpath Versions

1 component(s)
Fixed Versions:
1.2.0
Product / Package Ecosystem Affected Versions Fixed Version
jsonpath
npm/jsonpath
npm
< 1.2.0
1.2.0

References

NVD — CVE-2025-61140 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-61140
Jsonpath Source Repository REPOSITORY
https://github.com/dchester/jsonpath/issues/181
Jsonpath Source Repository REPOSITORY
https://github.com/dchester/jsonpath/issues/194
Jsonpath Source Repository REPOSITORY
https://github.com/dchester/jsonpath/pull/195
Security Fix Commit FIX COMMIT
https://github.com/dchester/jsonpath/commit/9631412641b7095f86840a7a45b5b3afc68b0fcb
Jsonpath Source Repository REPOSITORY
https://gist.github.com/Dremig/8105c189774217222a8ebea3ed4d341d
Jsonpath Source Repository REPOSITORY
https://github.com/dchester/jsonpath

Frequently Asked Questions

What is CVE-2025-61140?
CVE-2025-61140 is a security vulnerability in Jsonpath involving JSONPath vulnerable to Prototype Pollution due to insufficient input validation of object keys in lib/index.js under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Jsonpath versions are affected?
Affected versions include releases prior to 1.2.0 across affected packages: jsonpath.
What version fixes CVE-2025-61140?
Upgrading to 1.2.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is jsonpath affected?
Yes, jsonpath is affected in releases prior to 1.2.0. Upgrade your dependency to 1.2.0 or later.
What CWE is associated with CVE-2025-61140?
CVE-2025-61140 is classified under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.).
How can I check npm dependencies for CVE-2025-61140?
Run the dependency tree command: 'npm ls jsonpath'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-6c59-mwgh-r2x6",
  "modified" : "2026-02-05T16:14:30Z",
  "published" : "2026-01-28T18:30:47Z",
  "aliases" : [ "CVE-2025-61140" ],
  "summary" : "JSONPath vulnerable to Prototype Pollution due to insufficient input validation of object keys in lib/index.js",
  "details" : "The value function in jsonpath 1.1.1 lib/index.js is vulnerable to Prototype Pollution.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "jsonpath"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-61140"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dchester/jsonpath/issues/181"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dchester/jsonpath/issues/194"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dchester/jsonpath/pull/195"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dchester/jsonpath/commit/9631412641b7095f86840a7a45b5b3afc68b0fcb"
  }, {
    "type" : "WEB",
    "url" : "https://gist.github.com/Dremig/8105c189774217222a8ebea3ed4d341d"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/dchester/jsonpath"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-02T14:09:06Z",
    "nvd_published_at" : "2026-01-28T16:16:13Z"
  }
}