CVE-2026-45751
5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's inspection-buffer helper could leave an inspection pointer referencing freed memory after a chained transform caused the backing buffer to be reallocated. The issue is reached during a specific network traffic processing, and requires a specific but not malicious rule. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, avoid rules that chain dotprefix transform after another one.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OISF | suricata | < 7.0.16 | affected |
| OISF | suricata | >= 8.0.0, < 8.0.5 | affected |
Weaknesses
- CWE-416: CWE-416: Use After Free
References
- https://github.com/OISF/suricata/security/advisories/GHSA-59q6-j4w8-8pjx
- https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315
- https://redmine.openinfosecfoundation.org/issues/8537
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