Vulnerability DatabaseCVE-2026-31931
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CVE-2026-31931
Published:April 02, 2026
Updated:May 23, 2026
Suricata is a network IDS, IPS and NSM engine. From version 8.0.0 to before version 8.0.4, use of the "tls.alpn" rule keyword can cause Suricata to crash with a NULL dereference. This issue has been patched in version 8.0.4.
Affected Packages
https://github.com/OISF/suricata.git (GITHUB):
Affected version(s) >=suricata-0.8.2 <suricata-7.0.15
Fix Suggestion:
Update to version suricata-7.0.15
https://github.com/OISF/suricata.git (GITHUB):
Affected version(s) >=suricata-8.0.0 <suricata-8.0.4
Fix Suggestion:
Update to version suricata-8.0.4
Related Resources (2)
https://redmine.openinfosecfoundation.org/issues/8294
https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3
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CVSS v4
Base Score:
8.7
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
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
NULL Pointer Dereference
CWE-476
EPSS
Base Score:
0.02