SEPTEMBER 15, 2026
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Case File

CVE-2026-45759

HIGH · CVSS 7.5 EPSS 0.55% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-10 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

Suricata versions prior to 7.0.16 and 8.0.5 are vulnerable to a denial of service attack due to inefficient parsing of large HTTP `Content-Disposition` headers, which can lead to excessive CPU usage. Organizations utilizing Suricata for network security should prioritize upgrading to the patched versions to mitigate this high-severity risk. As a temporary workaround, implementing specific alert rules can help manage the impact until an upgrade is completed.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-45759
Severity
HIGH
CVSS
7.5
EPSS
0.55%

Original NVD Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata could repeatedly perform expensive parsing of large HTTP `Content-Disposition` headers during HTTP response body processing. Crafted HTTP traffic could cause excessive CPU usage and denial of service. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, use a rule like `alert http1 any any -> any any (sid: 1; http.request_header; content: "Content-Disposition:"; startswith; bsize: > 8192; bypass;)`.