CVE-2024-8763 Regular Expression Denial of Service (ReDoS) in lunary-ai/lunary

High 7.5 Published 20 Mar 2025 Updated 15 Oct 2025

An attacker can cause a denial of service by sending crafted input that triggers excessive CPU usage in the template compilation function.

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-2024-8763?

CVE-2024-8763 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

A Regular Expression Denial of Service (ReDoS) vulnerability exists in the lunary-ai/lunary repository, specifically in the compileTextTemplate function. The affected version is git be54057. An attacker can exploit this vulnerability by manipulating the regular expression /{{(.*?)}}/g, causing the server to hang indefinitely and become unresponsive to any requests. This is due to the regular expression's susceptibility to second-degree polynomial time complexity, which can be triggered by a large number of braces in the input.

Weakness: CWE-1333

Which versions are affected by CVE-2024-8763?

It affects 1 product.

Products include Lunary Lunary.

How do I fix CVE-2024-8763?

No fix has been published for CVE-2024-8763 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-2024-8763 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-8763 exists.

All Lunary Lunary vulnerabilities

Sources

Also known as GHSA-jqgv-3ch9-c9qv.