CVE-2019-10768: Angular Angular Prototype Pollution Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-89mq-4x47-5v83
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CVSS 7.5
CWE-1321 CWE-20 CWE-915
Published
Advisory Summary

CVE-2019-10768 is a HIGH (CVSS 7.5) angular prototype pollution vulnerability vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Angular libraries in the npm ecosystem. The issue involves angular prototype pollution vulnerability. Remediation is available by upgrading affected packages to version 1.7.9.

CVE-2019-10768 at a Glance

CVE Identifier CVE-2019-10768
GHSA Identifier GHSA-89mq-4x47-5v83
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Angular
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:H/A:N).

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 High (I:H)
Availability None (A:N)

How to Fix CVE-2019-10768

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

angular fixed: 1.7.9 
npm install angular@1.7.9
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 angular

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2019-10768, inspect your project dependencies using npm:

npm ls angular

Analyze the terminal output to locate any version of Angular in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.7.9), your application is affected.

Note: The npm ls angular 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 Angular, 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

Versions of `angular ` prior to 1.7.9 are vulnerable to prototype pollution. The deprecated API function `merge()` does not restrict the modification of an Object's prototype in the , which may allow an attacker to add or modify an existing property that will exist on all objects. ## Recommendation Upgrade to version 1.7.9 or later. The function was already deprecated and upgrades are not expected to break functionality.

CVE-2019-10768 Affected Angular Versions

1 component(s)
Fixed Versions:
1.7.9
Product / Package Ecosystem Affected Versions Fixed Version
angular
npm/angular
npm
< 1.7.9
1.7.9

References

NVD — CVE-2019-10768 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10768
Angular Source Repository REPOSITORY
https://github.com/angular/angular.js/pull/16913
Security Fix Commit FIX COMMIT
https://github.com/angular/angular.js/commit/add78e62004e80bb1e16ab2dfe224afa8e513bc3
Angular Source Repository REPOSITORY
https://github.com/angular/angular.js
lists.apache.org/thread.html/rca3793... WEB
https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b%40%3Ccommits.nifi.apache.org%3E
lists.apache.org/thread.html/rca3793... WEB
https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b@%3Ccommits.nifi.apache.org%3E
snyk.io/vuln/snyk-js-angula... WEB
https://snyk.io/vuln/SNYK-JS-ANGULAR-534884

Frequently Asked Questions

What is CVE-2019-10768?
CVE-2019-10768 is a security vulnerability in Angular involving angular Prototype Pollution vulnerability under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Angular versions are affected?
Affected versions include releases prior to 1.7.9 across affected packages: angular.
What version fixes CVE-2019-10768?
Upgrading to 1.7.9 (or the latest patched release for your respective branch) resolves the vulnerability.
Is angular affected?
Yes, angular is affected in releases prior to 1.7.9. Upgrade your dependency to 1.7.9 or later.
What is the CVSS score of CVE-2019-10768?
CVE-2019-10768 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2019-10768?
CVE-2019-10768 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-2019-10768?
Run the dependency tree command: 'npm ls angular'. 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-89mq-4x47-5v83",
  "modified" : "2025-11-20T19:29:58Z",
  "published" : "2019-11-20T15:29:43Z",
  "aliases" : [ "CVE-2019-10768" ],
  "summary" : "angular Prototype Pollution vulnerability",
  "details" : "Versions of `angular ` prior to 1.7.9 are vulnerable to prototype pollution. The deprecated API function `merge()` does not restrict the modification of an Object's prototype in the , which may allow an attacker to add or modify an existing property that will exist on all objects.\n\n## Recommendation\n\nUpgrade to version 1.7.9 or later. The function was already deprecated and upgrades are not expected to break functionality.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "angular"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.7.9"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-10768"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/angular/angular.js/pull/16913"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/angular/angular.js/commit/add78e62004e80bb1e16ab2dfe224afa8e513bc3"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/angular/angular.js"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b%40%3Ccommits.nifi.apache.org%3E"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b@%3Ccommits.nifi.apache.org%3E"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-ANGULAR-534884"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321", "CWE-20", "CWE-915" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-11-20T00:51:05Z",
    "nvd_published_at" : "2019-11-19T21:15:00Z"
  }
}