Apache Storm Client: RCE through Unsafe Deserialization via Kerberos TGT Credential Handling_CVE-2026-35337

{
    "lastseen": "",
    "description": "Deserialization of Untrusted Data vulnerability in Apache Storm.\n\nVersions Affected:\nbefore 2.8.6.\n\n\nDescription:\nWhen processing topology credentials submitted via the Nimbus Thrift API, Storm deserializes the base64-encoded TGT blob using ObjectInputStream.readObject() without any class filtering or validation.\u00a0An authenticated user with topology submission rights could supply a crafted serialized object in the \"TGT\" credential field, leading to remote code execution in both the Nimbus and Worker JVMs.\n\n\nMitigation:\n2.x users should upgrade to 2.8.6.\n\n\nUsers who cannot upgrade immediately should monkey-patch an ObjectInputFilter allow-list to ClientAuthUtils.deserializeKerberosTicket() restricting deserialized classes to javax.security.auth.kerberos.KerberosTicket and its known dependencies. A guide on how to do this is available in the release notes of 2.8.6.\n\nCredit: This issue was discovered by K.",
    "published": "2026-04-13T09:11:06.193Z",
    "modified": "2026-04-13T14:05:29.304Z",
    "type": "cve",
    "title": "Apache Storm Client: RCE through Unsafe Deserialization via Kerberos TGT Credential Handling",
    "source": "apache",
    "references": "https://storm.apache.org/2026/04/12/storm286-released.html",
    "id": "CVE-2026-35337",
    "bulletinFamily": "",
    "cwe": [
        "CWE-502"
    ],
    "cvelist": null,
    "sourceData": "Apache Software Foundation Apache Storm Client 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "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": "Apache Storm Client",
    "version": "0",
    "vendor": "Apache Software Foundation",
    "ai_description": "Remote code execution vulnerability in Apache Storm Client due to deserialization of untrusted data",
    "ai_severity": "High",
    "ai_vendor": "Apache Software Foundation",
    "ai_product": "Apache Storm Client",
    "ai_version": "before 2.8.6",
    "ai_score": 8.8
}