CVE-2026-71418
highSuricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine.
Vendor / product: Oisf — suricata
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processing in rust/src/http2/http2.rs retains previously processed HTTP/2 DATA frame contents instead of clearing the internal buffer. Multiple DATA frames with the EndOfStream flag set can grow the buffer to its 65 KiB limit while causing all prior contents to be processed again, producing quadratic CPU complexity, degraded packet processing, loss of monitoring visibility, or denial of service. This issue is fixed in version 8.0.6.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/OISF/suricata/commit/1731805967edf5d31448db2ae43cf72c6cf46c11 security-advisories@github.com
- https://github.com/OISF/suricata/commit/26c26dea84f00de95151a0e16d21c1fcafac9648 security-advisories@github.com
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6 security-advisories@github.com
- https://github.com/OISF/suricata/security/advisories/GHSA-xjgq-3qw4-jp5f security-advisories@github.com
- https://redmine.openinfosecfoundation.org/issues/8725 security-advisories@github.com