osrg GoBGP BGP OPEN Message bgp.go DecodeFromBytes access control_CVE-2026-5122

{
    "lastseen": "",
    "description": "A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is reported as difficult. The patch is named 2b09db390a3d455808363c53e409afe6b1b86d2d. It is suggested to install a patch to address this issue.",
    "published": "2026-03-30T14:15:14.485Z",
    "modified": "2026-03-30T16:38:44.520Z",
    "type": "cve",
    "title": "osrg GoBGP BGP OPEN Message bgp.go DecodeFromBytes access control",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/354154\nhttps://vuldb.com/vuln/354154/cti\nhttps://vuldb.com/submit/780124\nhttps://github.com/osrg/gobgp/pull/3343\nhttps://github.com/osrg/gobgp/commit/2b09db390a3d455808363c53e409afe6b1b86d2d\nhttps://github.com/osrg/gobgp/",
    "id": "CVE-2026-5122",
    "bulletinFamily": "",
    "cwe": [
        "CWE-284",
        "CWE-266"
    ],
    "cvelist": null,
    "sourceData": "osrg GoBGP 4.0\nosrg GoBGP 4.1\nosrg GoBGP 4.2\nosrg GoBGP 4.3.0",
    "sourceHref": "",
    "cvss": {
        "score": 6.3,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X",
        "version": "4.0"
    },
    "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": "GoBGP",
    "version": "4.0",
    "vendor": "osrg",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}