CVE-2018-1109 Regular Expression Denial of Service (ReDoS) in braces
Attackers can cause denial of service in applications using the Braces library via Regular Expression Denial of Service attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-1109?
CVE-2018-1109 is a medium-severity denial of service vulnerability in nodejs-braces, published on 30 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was found in Braces versions 2.2.0 and above, prior to 2.3.1. Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) attacks.
Which versions are affected by CVE-2018-1109?
2 open source packages ship an affected version, including braces. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
braces npm | From 2.2.0 | 2.3.1 |
braces npm | From 2.2.0 | 2.3.1 |
Products include Braces Project Braces.
How do I fix CVE-2018-1109?
Upgrade braces to 2.3.1 or later.
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-2018-1109 being exploited?
There is no known exploitation of CVE-2018-1109 in the wild and no public exploit code.
Sources
Also known as GHSA-cwfw-4gq5-mrqx.