Skip to content
VulnCrestRadar

Search vulnerabilities

Search CVE ids, WordPress plugins or keywords

Report an incidentReport
← Database

CVE-2026-73856

CVSS 3.1
8.6 high
CISA KEV
Not listed
Technical details
Weakness
CWE-178
EPSS · 10 Nov 2026
0.56% · p47
Public resources
None found
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.

Description

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.

Exploits & detection

No public PoC or detection template found yet.

Timeline

  • Published: 05 Nov 2026
  • Last modified upstream: 05 Nov 2026

Sources & licenses

CVE / CVSS / CWE
NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
Exploitation
CISA KEV (CC0) · EPSS by FIRST.org
References used for the analysis
Analysis, summary and remediation
© VulnCrest

View JSON