CVE-2022-25907: Ts deepmerge Ts-deepmerge Before 2.0.2 Vulnerable To Vulnerability

CRITICAL
Advisory Identifier: GHSA-7qqq-gh2f-wq76
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CVSS 9.8
CWE-1321
Published
Advisory Summary

CVE-2022-25907 is a CRITICAL (CVSS 9.8) ts-deepmerge before 2.0.2 vulnerable to vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Ts deepmerge libraries in the npm ecosystem. The issue involves ts-deepmerge before 2.0.2 vulnerable to prototype pollution. Remediation is available by upgrading affected packages to version 2.0.2.

CVE-2022-25907 at a Glance

CVE Identifier CVE-2022-25907
GHSA Identifier GHSA-7qqq-gh2f-wq76
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Ts deepmerge
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2022-25907

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

ts-deepmerge fixed: 2.0.2 
npm install ts-deepmerge@2.0.2
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 ts-deepmerge

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2022-25907, inspect your project dependencies using npm:

npm ls ts-deepmerge

Analyze the terminal output to locate any version of Ts deepmerge in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0.2), your application is affected.

Note: The npm ls ts-deepmerge 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 Ts deepmerge, 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 package ts-deepmerge before version 2.0.2 is vulnerable to Prototype Pollution due to missing sanitization of the `merge` function.

CVE-2022-25907 Affected Ts deepmerge Versions

1 component(s)
Fixed Versions:
2.0.2
Product / Package Ecosystem Affected Versions Fixed Version
ts-deepmerge
npm/ts-deepmerge
npm
< 2.0.2
2.0.2

References

NVD — CVE-2022-25907 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-25907
Security Fix Commit FIX COMMIT
https://github.com/voodoocreation/ts-deepmerge/commit/9be5148773343c57be9de39728d6ead18eddf10b
Ts deepmerge Source Repository REPOSITORY
https://github.com/voodoocreation/ts-deepmerge
Ts deepmerge Release RELEASE
https://github.com/voodoocreation/ts-deepmerge/releases/tag/2.0.2
Ts deepmerge Security Information SECURITY
https://security.snyk.io/vuln/SNYK-JS-TSDEEPMERGE-2959975

Frequently Asked Questions

What is CVE-2022-25907?
CVE-2022-25907 is a security vulnerability in Ts deepmerge involving ts-deepmerge before 2.0.2 vulnerable to Prototype Pollution under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Ts deepmerge versions are affected?
Affected versions include releases prior to 2.0.2 across affected packages: ts-deepmerge.
What version fixes CVE-2022-25907?
Upgrading to 2.0.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ts-deepmerge affected?
Yes, ts-deepmerge is affected in releases prior to 2.0.2. Upgrade your dependency to 2.0.2 or later.
What is the CVSS score of CVE-2022-25907?
CVE-2022-25907 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2022-25907?
CVE-2022-25907 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-2022-25907?
Run the dependency tree command: 'npm ls ts-deepmerge'. 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-7qqq-gh2f-wq76",
  "modified" : "2022-08-15T20:13:34Z",
  "published" : "2022-08-10T00:00:31Z",
  "aliases" : [ "CVE-2022-25907" ],
  "summary" : "ts-deepmerge before 2.0.2 vulnerable to Prototype Pollution",
  "details" : "The package ts-deepmerge before version 2.0.2 is vulnerable to Prototype Pollution due to missing sanitization of the `merge` function.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "ts-deepmerge"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.0.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-25907"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/voodoocreation/ts-deepmerge/commit/9be5148773343c57be9de39728d6ead18eddf10b"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/voodoocreation/ts-deepmerge"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/voodoocreation/ts-deepmerge/releases/tag/2.0.2"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-JS-TSDEEPMERGE-2959975"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-08-11T18:13:21Z",
    "nvd_published_at" : "2022-08-09T05:15:00Z"
  }
}