{
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09"
      },
      "title": "RCE through Unsafe Deserialization via Kerberos TGT Credential Handling",
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-502 Deserialization of Untrusted Data",
              "lang": "en",
              "cweId": "CWE-502",
              "type": "CWE"
            }
          ]
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "affected": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Storm Client",
          "collectionURL": "https://repo.maven.apache.org/maven2/",
          "packageName": "org.apache.storm:storm-client",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "2.8.6",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "descriptions": [
        {
          "value": "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.",
          "lang": "en",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "<p><b>Deserialization of Untrusted Data vulnerability in Apache Storm.</b></p><p><strong>Versions Affected:</strong>\nbefore 2.8.6.</p>\n<p><strong>Description:</strong>\nWhen processing topology credentials submitted via the Nimbus Thrift API, Storm deserializes the base64-encoded TGT blob using <code>ObjectInputStream.readObject()</code> without any class filtering or validation.&nbsp;An authenticated user with topology submission rights could supply a crafted serialized object in the <code>\"TGT\"</code> credential field, leading to remote code execution in both the Nimbus and Worker JVMs.</p>\n<p><strong>Mitigation:</strong>\n2.x users should upgrade to 2.8.6.</p>\n<p>Users who cannot upgrade immediately should monkey-patch an <code>ObjectInputFilter</code> allow-list to <code>ClientAuthUtils.deserializeKerberosTicket()</code> restricting deserialized classes to <code>javax.security.auth.kerberos.KerberosTicket</code> and its known dependencies. A guide on how to do this is available in the release notes of 2.8.6.</p><p><span style=\"background-color: rgb(255, 255, 255);\"><b>Credit:</b> This issue was discovered by K.</span><br></p>"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://storm.apache.org/2026/04/12/storm286-released.html",
          "tags": [
            "vendor-advisory"
          ]
        }
      ],
      "metrics": [
        {
          "other": {
            "type": "Textual description of severity",
            "content": {
              "text": "important"
            }
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "K",
          "type": "finder"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "cveId": "CVE-2026-35337",
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "serial": 1,
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}