CVE-2024-21490: angular.js — Exploit

Description

This affects versions of the package angular from 1.3.0. A regular expression used to split the value of the ng-srcset directive is vulnerable to super-linear runtime due to backtracking. With large carefully-crafted input, this can result in catastrophic backtracking and cause a denial of service. **Note:** This package is EOL and will not receive any updates to address this issue. Users should migrate to [@angular/core](https://www.npmjs.com/package/@angular/core).

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-1333 CWE-1333

Affected Products

Vendor	Product	Versions
angularjs	angular.js	>= 1.3.0

References

Exploits

https://stackblitz.com/edit/angularjs-vulnerability-ng-srcset-redos https://stackblitz.com/edit/angularjs-vulnerability-ng-srcset-redos

Other References

https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-6241746 https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-6241747 https://security.snyk.io/vuln/SNYK-JS-ANGULAR-6091113 https://lists.debian.org/debian-lts-announce/2025/07/msg00005.html https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-6241746 https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-6241747 https://security.snyk.io/vuln/SNYK-JS-ANGULAR-6091113 https://support.herodevs.com/hc/en-us/articles/25715686953485-CVE-2024-21490-AngularJS-Regular-Expression-Denial-of-Service-ReDoS

Frequently Asked Questions

What is CVE-2024-21490? +

This affects versions of the package angular from 1.3.0. A regular expression used to split the value of the ng-srcset directive is vulnerable to super-linear runtime due to backtracking. With large carefully-crafted input, this can result in catastrophic backtracking and cause a denial of service. **Note:** This package is EOL and will not receive any updates to address this issue. Users should migrate to [@angular/core](https://www.npmjs.com/package/@angular/core). It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-21490? +

CVE-2024-21490 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-21490? +

CVE-2024-21490 affects products from angularjs, specifically: angular.js. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-21490? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-21490