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Cve-2026-31934

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Suricata Quadratic Complexity Issue in SMTP URL Searching (CVE-2026-31934)

Suricata versions 8.0.0 to before 8.0.4 exhibit a quadratic complexity vulnerability (CVE-2026-31934) when searching for URLs in MIME-encoded SMTP messages, leading to significant performance degradation and potential denial-of-service conditions; this is fixed in version 8.0.4.

suricata cve-2026-31934 denial-of-service performance network-security
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