Description
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Libmodsecurity is one component of the ModSecurity v3 project. A segmentation fault occurs when a rule using the t:hexDecode transformation inspects a query string parameter containing a single character. An attacker can exploit this to crash worker processes, causing a denial of service. Service resumes once the attack stops as worker processes recover from the segfault. All versions before 3.0.15 of libModSecurity3 are affected. This has been patched in version 3.0.15.
INFO
Published Date :
2026-05-05T18:46:03.201Z
Last Modified :
2026-05-05T19:21:08.898Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-30923 vulnerability.
| Vendors | Products |
|---|---|
| Modsecurity |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-30923.
