Network Intrusion Detection System Vulnerability in Suricata
CVE-2026-45766

7.5HIGH

Key Information:

Vendor

Oisf

Status
Suricata
Vendor
CVE Published:
10 September 2026

What is CVE-2026-45766?

Suricata, a prominent network Intrusion Detection System (IDS), has identified a vulnerability related to its handling of NFS parser state structures prior to the release of versions 7.0.16 and 8.0.5. The flaw allows for the possibility of crafted NFS traffic to consume excessive memory resources, potentially leading to a denial of service condition. Users are advised to upgrade to the latest versions or disable NFS application-layer parsing if it is not necessary for their operations.

Affected Version(s)

suricata >= 8.0.0, < 8.0.5 < 8.0.0, 8.0.5

suricata < 7.0.16 < 7.0.16

References

https://github.com/OISF/suricata/security/advisories/GHSA...
x_refsource_CONFIRM
https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-rel...
x_refsource_MISC
https://redmine.openinfosecfoundation.org/issues/8418
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.