CVE-2021-3794 Inefficient Regular Expression Complexity in vuelidate/vuelidate
Attackers can cause denial of service in applications using vuelidate by triggering inefficient regular expression complexity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-3794?
CVE-2021-3794 is a high-severity denial of service vulnerability in vuelidate/vuelidate, published on 15 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
vuelidate is vulnerable to Inefficient Regular Expression Complexity
Weakness: CWE-1333
Which versions are affected by CVE-2021-3794?
2 open source packages ship an affected version, including @vuelidate/validators. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
@vuelidate/validators npm | All versions | 2.0.0-alpha.22 |
@vuelidate/validators npm | All versions | 2.0.0-alpha.22 |
Products include Vuelidate Project Vuelidate.
How do I fix CVE-2021-3794?
Upgrade @vuelidate/validators to 2.0.0-alpha.22 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-2021-3794 being exploited?
There is no known exploitation of CVE-2021-3794 in the wild and no public exploit code.
Sources
Also known as GHSA-vvf2-ppj9-pp49.