CVE-2026-35337

{"id": "CVE-2026-35337", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-35337", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-04-13T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security@apache.org", "affectedData": [{"vendor": "Apache Software Foundation", "product": "Apache Storm Client", "versions": [{"status": "affected", "version": "0", "lessThan": "2.8.6", "versionType": "semver"}], "packageName": "org.apache.storm:storm-client", "collectionURL": "https://repo.maven.apache.org/maven2/", "defaultStatus": "unaffected"}]}], "published": "2026-04-13T10:16:11.610", "references": [{"url": "https://storm.apache.org/2026/04/12/storm286-released.html", "tags": ["Release Notes", "Vendor Advisory"], "source": "security@apache.org"}, {"url": "http://www.openwall.com/lists/oss-security/2026/04/12/6", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@apache.org", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "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": "es", "value": "Vulnerabilidad de deserializaci\u00f3n de datos no confiables en Apache Storm.\n\nVersiones Afectadas:\nanteriores a 2.8.6.\n\nDescripci\u00f3n:\nAl procesar las credenciales de topolog\u00eda enviadas a trav\u00e9s de la API Thrift de Nimbus, Storm deserializa el blob TGT codificado en base64 usando ObjectInputStream.readObject() sin ning\u00fan filtrado o validaci\u00f3n de clases. Un usuario autenticado con derechos de env\u00edo de topolog\u00eda podr\u00eda proporcionar un objeto serializado malintencionado en el campo de credenciales \u2019TGT\u2019, lo que llevar\u00eda a la ejecuci\u00f3n remota de c\u00f3digo tanto en las JVM de Nimbus como en las de Worker.\n\nMitigaci\u00f3n:\nLos usuarios de 2.x deber\u00edan actualizar a 2.8.6.\n\nLos usuarios que no puedan actualizar de inmediato deber\u00edan aplicar un monkey-patch de una lista de permitidos de ObjectInputFilter a ClientAuthUtils.deserializeKerberosTicket() restringiendo las clases deserializadas a javax.security.auth.kerberos.KerberosTicket y sus dependencias conocidas. Una gu\u00eda sobre c\u00f3mo hacer esto est\u00e1 disponible en las notas de la versi\u00f3n 2.8.6.\n\nCr\u00e9dito: Este problema fue descubierto por K."}], "lastModified": "2026-10-26T22:10:00.163", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:storm:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "52FAF08F-1AE5-4EC5-BBA7-393B88FC8AD1", "versionEndExcluding": "2.8.6", "versionStartIncluding": "2.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}