CVE-2023-26116

Versions of the package angular from 1.2.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the angular.copy() utility function due to the usage of an insecure regular expression. Exploiting this vulnerability is possible by a large carefully-crafted input, which can result in catastrophic backtracking.

Affected

angular · org.webjars.bower:angular · org.webjars.npm:angular · org.webjars.bowergithub.angular:angular

CVSS v3.1 NVD

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS

1.70% chance of exploitation in the next 30 days, 77th percentile

Published

2023-03-30

Updated

2025-11-03

Proof-of-concept exploits (4)

• https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-5406320
• https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBANGULAR-5406322
• https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-5406321
• https://security.snyk.io/vuln/SNYK-JS-ANGULAR-3373044

Security advisories

• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/me…
• https://stackblitz.com/edit/angularjs-vulnerability-angular-copy-redos
• advisories/GHSA-2vrf-hf26-jrp5

References

• CVE Record
• NVD entry