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Back to active CVEs
High · CVSS 7.5CVE-2026-46352

Suricata defrag: fragmented encapsulated traffic with fragments can lead to deadlockCVE-2026-46352

Answer in brief

CVE-2026-46352 records a High severity (CVSS 7.5) vulnerability in Suricata defrag: fragmented encapsulated traffic with fragments can lead to deadlock. The current sources do not mark it as known exploited. The current feed maps OISF/suricata (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 16, 2026Updated Sep 28, 2026Source checked Nov 1, 2026First seen by HOL Sep 16, 2026Material review Sep 28, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps OISF/suricata (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
OISF/suricatageneric>=8.0.0 <8.0.58.0.5

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for OISF/suricata.
  2. 2Review the reported fix. Update OISF/suricata to 8.0.5 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 16, 2026

Sources and claim methodology

  • Source referenceforum.suricata.io
  • GitHub security advisorygithub.com
  • Source referenceredmine.openinfosecfoundation.org
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-833
Source
CVE List V5
Source checked
Nov 1, 2026
References
3 linked sources
Open source record