CVE catalog
CVE-2023-38199
modsecurity-crs: CVE-2023-38199
- Severity
- Critical · CVSS 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.75% · Oct 25, 2026
coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers on some platforms. This might allow attackers to bypass a WAF with a crafted payload, aka "Content-Type confusion" between the WAF and the backend application. This occurs when the web application relies on only the last Content-Type header. Other platforms may reject the additional Content-Type header or merge conflicting headers, leading to detection as a malformed header.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | modsecurity-crs | sid | 3.3.9-1 | fixed |
| Debian | modsecurity-crs | forky | 3.3.9-1 | fixed |
| Debian | modsecurity-crs | trixie | 3.3.7-1+deb13u2 | fixed |
| Debian | modsecurity-crs | trixie-security | 3.3.7-1+deb13u1 | fixed |
| Debian | modsecurity-crs | bookworm | 3.3.4-1+deb12u3 | fixed |
| Debian | modsecurity-crs | bookworm-security | 3.3.4-1+deb12u1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | modsecurity-crs | source | sid | 3.3.5-1 | not yet assigned | Not reported | [1041109] |
| Debian | modsecurity-crs | source | forky | 3.3.5-1 | not yet assigned | Not reported | [1041109] |
| Debian | modsecurity-crs | source | trixie | 3.3.5-1 | not yet assigned | Not reported | [1041109] |
| Debian | modsecurity-crs | source | bookworm | 3.3.4-1+deb12u2 | not yet assigned | Not reported | [1041109] |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-943925.json]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_13187-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-38199]
- [https://osv.dev/vulnerability/DLA-4488-1]
- [https://security-tracker.debian.org/tracker/CVE-2023-38199]
[CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]