CVE-2026-45759

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;)`.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315	Release Notes Vendor Advisory
https://github.com/OISF/suricata/security/advisories/GHSA-cfq5-g2v5-6652	Vendor Advisory
https://redmine.openinfosecfoundation.org/issues/8529	Permissions Required

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:oisf:suricata::::::::
	cpe:2.3:a:oisf:suricata::::::::

History

16 Sep 2026, 20:17

Type	Values Removed	Values Added
First Time		Oisf Oisf suricata
CPE		cpe:2.3:a:oisf:suricata::::::::
References	~~() https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 -~~	() https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 - Release Notes, Vendor Advisory
References	~~() https://github.com/OISF/suricata/security/advisories/GHSA-cfq5-g2v5-6652 -~~	() https://github.com/OISF/suricata/security/advisories/GHSA-cfq5-g2v5-6652 - Vendor Advisory
References	~~() https://redmine.openinfosecfoundation.org/issues/8529 -~~	() https://redmine.openinfosecfoundation.org/issues/8529 - Permissions Required

Information

Published : 2026-09-10 21:17

Updated : 2026-09-16 20:17

NVD link : CVE-2026-45759

Mitre link : CVE-2026-45759

CVE.ORG link : CVE-2026-45759

JSON object : View

Products Affected

oisf

suricata

CWE

CWE-400

Uncontrolled Resource Consumption

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