CVE Vulnerabilities

CVE-2024-21490

Inefficient Regular Expression Complexity

Published: Feb 10, 2024 | Modified: Nov 03, 2025
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
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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.

Weakness

The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

Affected Software

NameVendorStart VersionEnd Version
Angular.jsAngularjs1.3.0 (including)*
Angular.jsUbuntubionic*
Angular.jsUbuntuesm-apps/focal*
Angular.jsUbuntuesm-apps/jammy*
Angular.jsUbuntuesm-apps/noble*
Angular.jsUbuntuesm-infra/bionic*
Angular.jsUbuntufocal*
Angular.jsUbuntujammy*
Angular.jsUbuntumantic*
Angular.jsUbuntunoble*
Angular.jsUbuntuoracular*
Angular.jsUbuntuplucky*
Angular.jsUbuntutrusty*
Angular.jsUbuntuxenial*

Extended Description

	  Attackers can create crafted inputs that
	  intentionally cause the regular expression to use
	  excessive backtracking in a way that causes the CPU
	  consumption to spike.

Potential Mitigations

References