CVE-2024-8789 Regular Expression Denial of Service (ReDoS) in lunary-ai/lunary

High 7.5 Published 20 Mar 2025 Updated 15 Oct 2025

Attackers can cause server unresponsiveness by submitting malicious regular expressions, impacting availability of the Lunary AI application.

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-2024-8789?

CVE-2024-8789 is a high-severity denial of service vulnerability in Lunary Lunary, published on 20 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Lunary-ai/lunary version git 105a3f6 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack. The application allows users to upload their own regular expressions, which are then executed on the server side. Certain regular expressions can have exponential runtime complexity relative to the input size, leading to potential denial of service. An attacker can exploit this by submitting a specially crafted regular expression, causing the server to become unresponsive for an arbitrary length of time.

Weakness: CWE-1333

Which versions are affected by CVE-2024-8789?

It affects 1 product.

Products include Lunary Lunary.

How do I fix CVE-2024-8789?

No fix has been published for CVE-2024-8789 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-2024-8789 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-8789 exists.

All Lunary Lunary vulnerabilities

Sources

Also known as GHSA-jfm2-hq55-pxgq.