CVE-2025-48866

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub_MCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA-ADPADP
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 36%
VendorProductVersion
owaspmodsecurity
𝑥
< 2.9.10
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
modsecurity-apache
bullseye
vulnerable
bullseye (security)
2.9.3-3+deb11u4
fixed
bookworm
vulnerable
bookworm (security)
2.9.7-1+deb12u1
fixed
sid
2.9.11-1
fixed
trixie
2.9.11-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
modsecurity-apache
plucky
Fixed 2.9.8-1.1ubuntu0.1
released
oracular
Fixed 2.9.7-1ubuntu0.24.10.1
released
noble
Fixed 2.9.7-1ubuntu0.24.04.1~esm1
released
jammy
Fixed 2.9.5-1ubuntu0.1~esm2
released
focal
Fixed 2.9.3-1ubuntu0.1+esm1
released
bionic
Fixed 2.9.2-1ubuntu0.1~esm2
released
xenial
Fixed 2.9.0-1ubuntu0.1~esm2
released
trusty
Fixed 2.7.7-2ubuntu0.1~esm2
released