CVE-2026-46352: CWE-833: Deadlock in OISF suricata
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Starting in version 8.0.0 and prior to version 8.0.5, Suricata's IP defragmentation code could deadlock when processing fragmented traffic containing an encapsulated tunnel protocol whose payload is itself fragmented. Version 8.0.5 contains a fix. No known workarounds are available.
AI Analysis
Technical Summary
Suricata versions 8.0.0 through 8.0.4 contain a deadlock vulnerability (CWE-833) in the IP defragmentation code. The deadlock can be triggered by processing fragmented network traffic that includes an encapsulated tunnel protocol whose payload is itself fragmented. This condition causes Suricata to hang, impacting its availability. The issue is resolved in version 8.0.5.
Potential Impact
The vulnerability causes a denial of service condition by deadlocking Suricata's IP defragmentation process, resulting in a loss of availability. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade Suricata to version 8.0.5 or later, which contains the official fix for this deadlock vulnerability. No workarounds are currently available.
CVE-2026-46352: CWE-833: Deadlock in OISF suricata
Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Starting in version 8.0.0 and prior to version 8.0.5, Suricata's IP defragmentation code could deadlock when processing fragmented traffic containing an encapsulated tunnel protocol whose payload is itself fragmented. Version 8.0.5 contains a fix. No known workarounds are available.
CVSS v3.1
Score 7.5high
Affected software
OISF
suricata
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Suricata versions 8.0.0 through 8.0.4 contain a deadlock vulnerability (CWE-833) in the IP defragmentation code. The deadlock can be triggered by processing fragmented network traffic that includes an encapsulated tunnel protocol whose payload is itself fragmented. This condition causes Suricata to hang, impacting its availability. The issue is resolved in version 8.0.5.
Potential Impact
The vulnerability causes a denial of service condition by deadlocking Suricata's IP defragmentation process, resulting in a loss of availability. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade Suricata to version 8.0.5 or later, which contains the official fix for this deadlock vulnerability. No workarounds are currently available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-13T18:37:30.991Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaae43755bf5e2cf50475e7
Added to database: 09/16/2026, 18:47:19 UTC
Last enriched: 09/16/2026, 19:01:31 UTC
Last updated: 09/17/2026, 00:29:01 UTC
Views: 7
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