Release Date: | 2025-06-02 | |
Impact: | Moderate | What is this? |
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions prior to 2.9.10 contain a denial of service vulnerability similar to GHSA-859r-vvv8-rm8r/CVE-2025-47947. The `sanitiseArg` (and `sanitizeArg` - this is the same action but an alias) is vulnerable to adding an excessive number of arguments, thereby leading to denial of service. Version 2.9.10 fixes the issue. As a workaround, avoid using rules that contain the `sanitiseArg` (or `sanitizeArg`) action.
See more information about CVE-2025-48866 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
Base Score: | 5.9 |
Vector String: | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
Version: | 3.1 |
Attack Vector: | Network |
Attack Complexity: | High |
Privileges Required: | None |
User Interaction: | None |
Scope: | Unchanged |
Confidentiality Impact: | None |
Integrity Impact: | None |
Availability Impact: | High |
Platform | Errata | Release Date |
Oracle Linux version 9 (mod_security) | ELSA-2025-12838 | 2025-08-05 |
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