---
title: "CVE-2026-45759: Suricata - Denial of Service"
description: "Suricata < 7.0.16 and < 8.0.5 contains a denial of service caused by expensive parsing of large HTTP Content-Disposition headers during HTTP response processing, letting attackers cause excessive CPU usage remotely, exploit requires crafted HTTP traffic."
url: https://panop.io/threat-heartbeat/CVE-2026-45759/
---

# CVE-2026-45759 Suricata - Denial of Service

Suricata < 7.0.16 and < 8.0.5 contains a denial of service caused by expensive parsing of large HTTP Content-Disposition headers during HTTP response processing, letting attackers cause excessive CPU usage remotely, exploit requires crafted HTTP traffic.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.84% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-45759)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

10 September 2026

Updated

15 October 2026

Weakness

[CWE-400](https://cwe.mitre.org/data/definitions/400.html)

## Vendor fix

Upgrade to versions 7.0.16, 8.0.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-45759](https://nvd.nist.gov/vuln/detail/CVE-2026-45759)
- [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)
- [https://github.com/OISF/suricata/security/advisories/GHSA-cfq5-g2v5-6652](https://github.com/OISF/suricata/security/advisories/GHSA-cfq5-g2v5-6652)
- [https://redmine.openinfosecfoundation.org/issues/8529](https://redmine.openinfosecfoundation.org/issues/8529)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)