CVE-2021-40895 Denial of service in n/a
Attackers can cause denial of service in applications using todo-regex by submitting crafted invalid TODO statements that trigger excessive CPU usage.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-40895?
CVE-2021-40895 is a high-severity denial of service vulnerability in n/a, published on 27 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A Regular Expression Denial of Service (ReDOS) vulnerability was discovered in todo-regex v0.1.1 when matching crafted invalid TODO statements.
Weakness: CWE-1333
Which versions are affected by CVE-2021-40895?
It affects 1 product.
Products include Todo-Regex Project Todo-Regex.
How do I fix CVE-2021-40895?
No fix has been published for CVE-2021-40895 yet. Limit exposure of the affected software until one is available.
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-2021-40895 being exploited?
There is no known exploitation of CVE-2021-40895 in the wild and no public exploit code.
Sources
Also known as GHSA-8g46-9547-67wj.