CVE-2026-22263
January 27, 2026
Suricata is a network IDS, IPS and NSM engine. Starting in version 8.0.0 and prior to version 8.0.3, inefficiency in http1 headers parsing can lead to slowdown over multiple packets. Version 8.0.3 patches the issue. No known workarounds are available.
Affected Packages
https://github.com/OISF/suricata.git (GITHUB):
Affected version(s) >=suricata-8.0.0 <suricata-8.0.3Fix Suggestion:
Update to version suricata-8.0.3https://github.com/OISF/suricata.git (GITHUB):
Affected version(s) >=suricata-7.0.0 <suricata-7.0.14Fix Suggestion:
Update to version suricata-7.0.14suricata (RUST):
Affected version(s) >=6.0.3-alpha.1 <7.0.14Fix Suggestion:
Update to version 7.0.14suricata (RUST):
Affected version(s) >=8.0.0 <8.0.3Fix Suggestion:
Update to version 8.0.3Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Excessive Platform Resource Consumption within a Loop
EPSS
Base Score:
0.02
