CVE-2026-31933
Suricata stream: quadratic complexity in stream inspection
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
12th
Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, specially crafted traffic can cause Suricata to slow down, affecting performance in IDS mode. This issue has been patched in versions 7.0.15 and 8.0.4.
| CWE | CWE-407 |
| Vendor | oisf |
| Product | suricata |
| Published | Apr 2, 2026 |
| Last Updated | Apr 3, 2026 |
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CVSS v3 Breakdown
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
Affected Versions
OISF / suricata
< 7.0.15 >= 8.0.0, < 8.0.4