CVE-2025-48866
Publication date 2 June 2025
Last updated 16 June 2025
Ubuntu priority
Cvss 3 Severity Score
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.
Status
Package | Ubuntu Release | Status |
---|---|---|
modsecurity-apache | 25.04 plucky |
Fixed 2.9.8-1.1ubuntu0.1
|
24.10 oracular |
Fixed 2.9.7-1ubuntu0.24.10.1
|
|
24.04 LTS noble |
Fixed 2.9.7-1ubuntu0.24.04.1~esm1
|
|
22.04 LTS jammy |
Fixed 2.9.5-1ubuntu0.1~esm2
|
|
20.04 LTS focal |
Fixed 2.9.3-1ubuntu0.1+esm1
|
|
18.04 LTS bionic |
Fixed 2.9.2-1ubuntu0.1~esm2
|
|
16.04 LTS xenial |
Fixed 2.9.0-1ubuntu0.1~esm2
|
|
14.04 LTS trusty |
Fixed 2.7.7-2ubuntu0.1~esm2
|
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Get Ubuntu ProSeverity score breakdown
Parameter | Value |
---|---|
Base score |
|
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-7567-1
- ModSecurity vulnerabilities
- 13 June 2025
Other references
- https://www.cve.org/CVERecord?id=CVE-2025-48866
- https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-f82j-8pp7-cw2w
- https://github.com/owasp-modsecurity/ModSecurity/commit/fdfc2d5b21610651b0cefceb397be2cfc7aac8bb
- https://github.com/owasp-modsecurity/ModSecurity/commit/3a54ccea62d3f7151bb08cb78d60c5e90b53ca2e
- https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-859r-vvv8-rm8r
- https://github.com/owasp-modsecurity/ModSecurity/wiki/Reference-Manual-(v2.x)#sanitisearg