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I. Basic Information for CVE-2026-31934
Vulnerability Information

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Vulnerability Title
Suricata smtp/mine: quadratic complexity in extracting urls
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
算法复杂性
Source: NVD (National Vulnerability Database)
Vulnerability Title
Suricata 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Suricata是Open Information Security基金会的一个网络IDS、IPS和NSM引擎。 Suricata 8.0.0至8.0.4之前版本存在安全漏洞,该漏洞源于在SMTP的MIME编码消息中搜索URL时存在二次复杂度问题,可能导致性能影响。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
OISFsuricata >= 8.0.0, < 8.0.4 -
II. Public POCs for CVE-2026-31934
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III. Intelligence Information for CVE-2026-31934
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IV. Related Vulnerabilities
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