En resumen
- CVE-2026-35337 es una vulnerabilidad ALTO (CVSS 8.8) que afecta a org.apache.storm:storm-client, storm (apache).
- Probabilidad de explotación en los próximos 30 días (EPSS): 1.0%, mayor que el 63.2% de las vulnerabilidades.
- Solución: actualizar a 2.8.6 o posterior.
Description
Deserialization of Untrusted Data vulnerability in Apache Storm.
Versions Affected:
before 2.8.6.
Description:
When 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. An 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.
Mitigation:
2.x users should upgrade to 2.8.6.
Users 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.
Credit: This issue was discovered by K.
NVD description
Deserialization of Untrusted Data vulnerability in Apache Storm.
Versions Affected:
before 2.8.6.
Description:
When 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. An 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.
Mitigation:
2.x users should upgrade to 2.8.6.
Users 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.
Credit: This issue was discovered by K.
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