Vulnerability in Oisf Suricata

CVE-2026-57229

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the SMTP MIME parser in rust/src/mime/smtp.rs does not fully reset state when processing Content-Type: message/rfc822 encapsulation. An outer MIME part's encoding or filename state can leak into the inner message, allowing crafted mail to evade detections based on file.data, file.name, or extracted URLs when SMTP MIME decoding is enabled. This issue is fixed in version 8.0.6.

Vulnerability class: Dirty Pipe (CVE-2022-0847)

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-57229?
CVE-2026-57229 is a medium-severity vulnerability in Oisf Suricata, classified under Improper Initialization. CVSS score: 5.3/10. Published 2026-09-18.
How severe is CVE-2026-57229?
Medium severity. CVSS v3 base score is 5.3 out of 10.