CVE-2025-27110: Libmodsecurity3 has possible bypass of encoded HTML entities
First published: Tue Feb 25 2025(Updated: )
Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ModSecurity | ||
| ModSecurity | =3.0.13 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-27110?
CVE-2025-27110 is classified as a medium severity vulnerability.
How do I fix CVE-2025-27110?
To fix CVE-2025-27110, upgrade Libmodsecurity to version 3.0.14 or later.
What software is affected by CVE-2025-27110?
CVE-2025-27110 affects Libmodsecurity3 version 3.0.13.
What type of vulnerability is CVE-2025-27110?
CVE-2025-27110 is a bug in the Libmodsecurity component of ModSecurity that can impact web traffic processing.
When was CVE-2025-27110 reported?
CVE-2025-27110 was reported in 2025, associated with the release of Libmodsecurity3 version 3.0.13.
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