CVE-2026-63451
Suricata detect: frame rules without content and with transform can cause heap buffer overflow during rule load
- State
- Published
- Severity
- 3.3 Low
- Published
- Sep 18, 2026
- Updated
- Sep 21, 2026
- Reserved
- Jul 16, 2026
Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, a locally supplied detection rule that combines frame inspection without content and a transformed match without content can make src/detect-engine-prefilter.c select multiple non-prefilter frame engines while preparing signatures for non-prefilter inspection. Loading the crafted rule, including in test mode, can trigger a heap buffer overflow and crash Suricata; network traffic alone cannot reach the flaw. This issue is fixed in version 8.0.6.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L | GitHub_M |
Weaknesses
- CWE-122 Heap-based Buffer Overflow
Affected Products
| Product | Versions |
|---|---|
suricataOISF |
|
References
- https://github.com/OISF/suricata/security/advisories/GHSA-6qwq-j83r-qp34
- https://github.com/OISF/suricata/pull/15807
- https://github.com/OISF/suricata/commit/5449ae170bfce213907d9bab87143a59774ed48f
- https://github.com/OISF/suricata/commit/d62acf5d75a61b76b16815e773408852f41b1975
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6
- https://redmine.openinfosecfoundation.org/issues/8590
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