suricata: Suricata is a network IDS, IPS and NSM engine
CVE-2026-22259 is fixed in suricata on 1 platform, first by DEBIAN-CVE-2026-22259, released January 27, 2026. It is not reported as exploited. Patch Radar priority: High.
Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, specially crafted traffic can cause Suricata to consume large amounts of memory while parsing DNP3 traffic. This can lead to the process slowing down and running out of memory, potentially leading to it getting killed by the OOM killer. Versions 8.0.3 or 7.0.14 contain a patch. As a workaround, disable the DNP3 parser in the suricata yaml (disabled by default).
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| suricata · Debian 13.5 (trixie) | 1:7.0.10-1+deb13u3 | DEBIAN-CVE-2026-22259 | Jan 27, 2026 |
| suricata · Debian 14 | 1:8.0.3-1 | DEBIAN-CVE-2026-22259 | Jan 27, 2026 |
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