# CVE-2026-31934: suricata: Suricata is a network IDS, IPS and NSM engine

CVE-2026-31934 is fixed in suricata on 1 platform by DEBIAN-CVE-2026-31934 (version 1:8.0.4-1), released April 2, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-31934
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0028
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 2, 2026

## Description

Suricata is a network IDS, IPS and NSM engine. From version 8.0.0 to before version 8.0.4, there is a quadratic complexity issue when searching for URLs in mime encoded messages over SMTP leading to a performance impact. This issue has been patched in version 8.0.4.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | suricata Debian 14 | 1:8.0.4-1 | [DEBIAN-CVE-2026-31934](https://patchblox.com/security/data/fix/linux/debian-cve-2026-31934.md) | Apr 2, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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