ubuntu-cve-2025-48866
Vulnerability from osv_ubuntu
Published
2025-06-02 16:15
Modified
2026-01-20 05:33
Summary
Details
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.
Severity
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libapache2-mod-security2",
"binary_version": "2.7.7-2ubuntu0.1~esm2"
},
{
"binary_name": "libapache2-modsecurity",
"binary_version": "2.7.7-2ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "modsecurity-apache",
"purl": "pkg:deb/ubuntu/modsecurity-apache@2.7.7-2ubuntu0.1~esm2?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.7-2ubuntu0.1~esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.7.4-1",
"2.7.5-1",
"2.7.7-1",
"2.7.7-1ubuntu1",
"2.7.7-2",
"2.7.7-2ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libapache2-mod-security2",
"binary_version": "2.9.0-1ubuntu0.1~esm2"
},
{
"binary_name": "libapache2-modsecurity",
"binary_version": "2.9.0-1ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "modsecurity-apache",
"purl": "pkg:deb/ubuntu/modsecurity-apache@2.9.0-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.0-1ubuntu0.1~esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.0-1",
"2.9.0-1ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libapache2-mod-security2",
"binary_version": "2.9.2-1ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "modsecurity-apache",
"purl": "pkg:deb/ubuntu/modsecurity-apache@2.9.2-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.2-1ubuntu0.1~esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.1-3",
"2.9.2-1",
"2.9.2-1ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libapache2-mod-security2",
"binary_version": "2.9.3-1ubuntu0.1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "modsecurity-apache",
"purl": "pkg:deb/ubuntu/modsecurity-apache@2.9.3-1ubuntu0.1+esm1?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.3-1ubuntu0.1+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.3-1",
"2.9.3-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libapache2-mod-security2",
"binary_version": "2.9.5-1ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "modsecurity-apache",
"purl": "pkg:deb/ubuntu/modsecurity-apache@2.9.5-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.5-1ubuntu0.1~esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.3-3",
"2.9.5-1",
"2.9.5-1ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libapache2-mod-security2",
"binary_version": "2.9.7-1ubuntu0.24.04.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:24.04:LTS",
"name": "modsecurity-apache",
"purl": "pkg:deb/ubuntu/modsecurity-apache@2.9.7-1ubuntu0.24.04.1~esm1?arch=source\u0026distro=esm-apps/noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.7-1ubuntu0.24.04.1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.7-1",
"2.9.7-1build2",
"2.9.7-1build3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libapache2-mod-security2",
"binary_version": "2.9.12-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "modsecurity-apache",
"purl": "pkg:deb/ubuntu/modsecurity-apache@2.9.12-2?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.8-1.1",
"2.9.9-1",
"2.9.9-1ubuntu1",
"2.9.12-2"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2025-48866",
"modified": "2026-01-20T05:33:07Z",
"published": "2025-06-02T16:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-48866"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-48866"
},
{
"type": "REPORT",
"url": "https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-f82j-8pp7-cw2w"
},
{
"type": "REPORT",
"url": "https://github.com/owasp-modsecurity/ModSecurity/commit/fdfc2d5b21610651b0cefceb397be2cfc7aac8bb"
},
{
"type": "REPORT",
"url": "https://github.com/owasp-modsecurity/ModSecurity/commit/3a54ccea62d3f7151bb08cb78d60c5e90b53ca2e"
},
{
"type": "REPORT",
"url": "https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-859r-vvv8-rm8r"
},
{
"type": "REPORT",
"url": "https://github.com/owasp-modsecurity/ModSecurity/wiki/Reference-Manual-(v2.x)#sanitisearg"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-7567-1"
}
],
"related": [
"USN-7567-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2025-48866"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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