CVE-2026-31932: CWE-407: Inefficient Algorithmic Complexity in OISF suricata
CVE-2026-31932 is a high-severity vulnerability in OISF Suricata, a network IDS/IPS/NSM engine. It involves inefficient algorithmic complexity in the KRB5 buffering process, leading to potential performance degradation. This issue affects Suricata versions prior to 7.0.15 and versions from 8.0.0 up to but not including 8.0.4. The vulnerability has been addressed in versions 7.
AI Analysis
Technical Summary
Suricata versions before 7.0.15 and between 8.0.0 and 8.0.4 contain an inefficient algorithmic complexity issue in the KRB5 buffering mechanism. This inefficiency can cause performance degradation under certain conditions. The problem is classified under CWE-407 (Inefficient Algorithmic Complexity). The vendor has released patches in versions 7.0.15 and 8.0.4 to resolve this issue.
Potential Impact
The vulnerability does not impact confidentiality or integrity but can cause denial of service through performance degradation (availability impact). This can affect network monitoring and intrusion detection capabilities by slowing down or disrupting Suricata's processing.
Mitigation Recommendations
Upgrade Suricata to version 7.0.15 or later, or to version 8.0.4 or later, where this vulnerability has been patched. No other mitigations are indicated or required according to the vendor advisory.
CVE-2026-31932: CWE-407: Inefficient Algorithmic Complexity in OISF suricata
Description
CVE-2026-31932 is a high-severity vulnerability in OISF Suricata, a network IDS/IPS/NSM engine. It involves inefficient algorithmic complexity in the KRB5 buffering process, leading to potential performance degradation. This issue affects Suricata versions prior to 7.0.15 and versions from 8.0.0 up to but not including 8.0.4. The vulnerability has been addressed in versions 7.
CVSS v3.1
Score 7.5high
Affected software
pkg:github/oisf/suricataRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Suricata versions before 7.0.15 and between 8.0.0 and 8.0.4 contain an inefficient algorithmic complexity issue in the KRB5 buffering mechanism. This inefficiency can cause performance degradation under certain conditions. The problem is classified under CWE-407 (Inefficient Algorithmic Complexity). The vendor has released patches in versions 7.0.15 and 8.0.4 to resolve this issue.
Potential Impact
The vulnerability does not impact confidentiality or integrity but can cause denial of service through performance degradation (availability impact). This can affect network monitoring and intrusion detection capabilities by slowing down or disrupting Suricata's processing.
Mitigation Recommendations
Upgrade Suricata to version 7.0.15 or later, or to version 8.0.4 or later, where this vulnerability has been patched. No other mitigations are indicated or required according to the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-10T15:10:10.654Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69ce7bd9e6bfc5ba1ddfe6d6
Added to database: 04/02/2026, 14:23:21 UTC
Last enriched: 04/09/2026, 22:54:15 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 272
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