Suricata eve/alert: http1 xff handling can lead to denial of service_CVE-2026-22261

{
    "lastseen": "",
    "description": "Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, various inefficiencies in xff handling, especially for alerts not triggered in a tx, can lead to severe slowdowns. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, disable XFF support in the eve configuration. The setting is disabled by default.",
    "published": "2026-01-27T18:10:27.881Z",
    "modified": "2026-01-27T18:24:24.317Z",
    "type": "cve",
    "title": "Suricata eve/alert: http1 xff handling can lead to denial of service",
    "source": "GitHub_M",
    "references": "https://github.com/OISF/suricata/security/advisories/GHSA-5jvg-5j3p-34cf\nhttps://github.com/OISF/suricata/commit/3f0725b34c7871c2de4346c8af872f10f4501e44\nhttps://github.com/OISF/suricata/commit/af246ae7ab1b70c09f83c0619b253095ccc18667\nhttps://redmine.openinfosecfoundation.org/issues/8156",
    "id": "CVE-2026-22261",
    "bulletinFamily": "",
    "cwe": [
        "CWE-1050"
    ],
    "cvelist": null,
    "sourceData": "OISF suricata < 7.0.14\nOISF suricata >= 8.0.0, < 8.0.3",
    "sourceHref": "",
    "cvss": {
        "score": 3.7,
        "severity": "LOW",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "suricata",
    "version": "< 7.0.14",
    "vendor": "OISF",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}