# CVE-2026-31934

## Summary

- **CVE ID:** CVE-2026-31934
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-407
- **Published:** Apr 2, 2026
- **Last Modified:** 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.

## Affected Products

- OISF — suricata (>= 8.0.0, < 8.0.4)

## References

- [CNA](https://github.com/OISF/suricata/security/advisories/GHSA-hr89-h2pp-f3c8)
- [CNA](https://redmine.openinfosecfoundation.org/issues/8292)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.27%
- **EPSS Percentile:** 19.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._