ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx.
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. From 3.0.0 until 3.0.17, src/transaction.cc compares a response Content-Type value against SecResponseBodyMimeType entries case-sensitively. A mixed-case response media type that is semantically equivalent to a configured lowercase type can therefore be treated as unconfigured, causing ModSecurity to skip RESPONSE_BODY inspection. An unauthenticated requester can then receive response content that a phase 4 rule would otherwise block, including sensitive error or debug data. This issue is fixed in version 3.0.17.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Owasp-Modsecurity
- Product
- ModSecurity
- CVSS v3.1
- 8.6 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
- Fix
- available
- Weakness
- CWE-178
- Exposure class
- Web platform
- NVD status
- Received
Why it ranks 41 (Notable)
- CVSS v3.1 8.6 high
- Product class: web platform
- Widely deployed vendor product (Owasp-Modsecurity)
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-73856 on this site · NVD · CVE.org · Vulnpedia
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