CVE-2023-26102: Rangy Rangy Vulnerable To Prototype Pollution Vulnerability

HIGH
Advisory Identifier: GHSA-65rp-mhqf-8gj3
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CVSS 8.2
CWE-1321
Published
Advisory Summary

CVE-2023-26102 is a HIGH (CVSS 8.2) rangy vulnerable to prototype pollution vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Rangy libraries in the npm ecosystem. The issue involves rangy vulnerable to prototype pollution. Remediation is available in the latest vendor maintenance releases.

CVE-2023-26102 at a Glance

CVE Identifier CVE-2023-26102
GHSA Identifier GHSA-65rp-mhqf-8gj3
Severity HIGH
CVSS v3.1 Base Score 8.2
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Rangy
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 8.2

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:N/I:L/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 None (C:N)
Integrity Low (I:L)
Availability High (A:H)

How to Fix CVE-2023-26102

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

rangy fixed: Latest secure release 
npm install rangy@Latest secure release
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 rangy

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2023-26102, inspect your project dependencies using npm:

npm ls rangy

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

Note: The npm ls rangy 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 Rangy, 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

All versions of the package rangy are vulnerable to Prototype Pollution when using the `extend()` function in file `rangy-core.js`.The function uses recursive merge which can lead an attacker to modify properties of the Object.prototype.

CVE-2023-26102 Affected Rangy Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
rangy
npm/rangy
npm
≤ 1.3.1

References

NVD — CVE-2023-26102 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26102
Rangy Source Repository REPOSITORY
https://github.com/timdown/rangy/issues/478
Rangy Source Repository REPOSITORY
https://github.com/timdown/rangy
Rangy Security Information SECURITY
https://security.snyk.io/vuln/SNYK-JS-RANGY-3175702

Frequently Asked Questions

What is CVE-2023-26102?
CVE-2023-26102 is a security vulnerability in Rangy involving rangy vulnerable to Prototype Pollution under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Rangy versions are affected?
Affected versions include releases prior to current release patches across affected packages: rangy.
What version fixes CVE-2023-26102?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is rangy affected?
Yes, rangy is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2023-26102?
CVE-2023-26102 has a CVSS v3.1 base score of 8.2 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.
What CWE is associated with CVE-2023-26102?
CVE-2023-26102 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-2023-26102?
Run the dependency tree command: 'npm ls rangy'. 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-65rp-mhqf-8gj3",
  "modified" : "2023-03-03T00:12:19Z",
  "published" : "2023-02-24T06:30:16Z",
  "aliases" : [ "CVE-2023-26102" ],
  "summary" : "rangy vulnerable to Prototype Pollution",
  "details" : "All versions of the package rangy are vulnerable to Prototype Pollution when using the `extend()` function in file `rangy-core.js`.The function uses recursive merge which can lead an attacker to modify properties of the Object.prototype.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "rangy"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.3.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-26102"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/timdown/rangy/issues/478"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/timdown/rangy"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-JS-RANGY-3175702"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-02-24T16:23:36Z",
    "nvd_published_at" : "2023-02-24T05:15:00Z"
  }
}