CVE-2026-31931

HIGH EPSS 27.0%
Published Apr 2, 20263mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Apr 2, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
27.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 1

VendorProductVersionRange
oisfsuricata*≥8.0.0  –  <8.0.4

References 2

  • github.com https://github.com/OISF/suricata/security/advisories/GHSA-gr22-4784-xvw3
    Vendor Advisory
  • redmine.openinfosecfoundation.org https://redmine.openinfosecfoundation.org/issues/8294
    Issue TrackingPermissions Required

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.