CVE-2026-57224
What it is
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the DHCP parser in rust/src/dhcp/dhcp.rs creates stateless transactions without recording their packet direction with AppLayerTxData::for_direction(), so a sensor that observes only one direction cannot mark the unseen direction inspected or free completed transactions. The RDP parser in rust/src/rdp/rdp.rs has the same direction-state defect. The per-flow transaction list can grow without bound and cleanup repeatedly scans it, causing increasing CPU and memory consumption and eventual denial of service. This issue is fixed in version 8.0.6.
At a glance
- Exploitability
- Can be exploited from the same network segment without logging in. High risk of service disruption.
- Exploit odds
- 0.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.4% in the next 30 days (EPSS).
- Severity: 6.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-400 · Uncontrolled resource consumption
- Record status
- Analyzed
Affected
- Oisf Suricata < 8.0.6
Attack profile CVSS 3.1 · 6.5
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-57224.md and follow it. Check whether this project is affected by CVE-2026-57224. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/OISF/suricata/commit/3f86c56c800392ede5cfaf7a944a431fd8445c55
- https://github.com/OISF/suricata/commit/5af13e3eb06be0387da8703b611c5ce932245c59
- https://github.com/OISF/suricata/commit/bac8a69ca48c14582d39a244a87edad44751ebe1
- https://github.com/OISF/suricata/commit/ef035c7603293a10c5ad087e3d20b05f75236144
- https://github.com/OISF/suricata/pull/15740
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6
- https://github.com/OISF/suricata/security/advisories/GHSA-m2vc-g65c-ph7m
References
- https://github.com/OISF/suricata/commit/3f86c56c800392ede5cfaf7a944a431fd8445c55
- https://github.com/OISF/suricata/commit/5af13e3eb06be0387da8703b611c5ce932245c59
- https://github.com/OISF/suricata/commit/bac8a69ca48c14582d39a244a87edad44751ebe1
- https://github.com/OISF/suricata/commit/ef035c7603293a10c5ad087e3d20b05f75236144
- https://github.com/OISF/suricata/pull/15740
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6
- https://github.com/OISF/suricata/security/advisories/GHSA-m2vc-g65c-ph7m
- https://redmine.openinfosecfoundation.org/issues/8621