CVE-2023-26118 angular vulnerable to regular expression denial of service via the <input type="url"> element
An attacker can cause a denial of service in applications using Angular by submitting a crafted URL input that triggers catastrophic backtracking in regular expressions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-26118?
CVE-2023-26118 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 30 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Versions of the package angular from 1.4.9 are vulnerable to Regular Expression Denial of Service (ReDoS) via the <input type="url"> element due to the usage of an insecure regular expression in the input[url] functionality. Exploiting this vulnerability is possible by a large carefully-crafted input, which can result in catastrophic backtracking.
Weakness: CWE-1333
Which versions are affected by CVE-2023-26118?
2 open source packages ship an affected version, including angular. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
angular npm | All versions to 1.8.3 | None |
angular npm | All versions to 1.8.3 | None |
Products include Angularjs Angularjs, Fedoraproject Fedora.
How do I fix CVE-2023-26118?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-26118 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26118 exists.
Other vulnerabilities in Fedoraproject Fedora
- CVE-2019-10768 angular Prototype Pollution vulnerability
- CVE-2019-14863 AngularJS Cross-site Scripting due to failure to sanitize `xlink.href` attributes
- CVE-2020-7676 Angular vulnerable to Cross-site Scripting
- CVE-2023-26116 angular vulnerable to regular expression denial of service via the angular.copy() utility
- CVE-2023-26117 angular vulnerable to regular expression denial of service via the $resource service
Sources
Also known as DEBIAN-CVE-2023-26118, GHSA-qwqh-hm9m-p5hr, MINI-h8w3-f45v-j5hh, ROOT-APP-NPM-CVE-2023-26118, UBUNTU-CVE-2023-26118.