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CVE-2026-35337— Apache Storm Client: RCE through Unsafe Deserialization via Kerberos TGT Credential Handling

Quick assessment

Affected
Apache Software Foundation Apache Storm Client
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Storm是美国阿帕奇（Apache）基金会的一套采用Clojure（并发编程语言）开发的开源分布式实时计算系统。 Apache Storm 2.8.6之前版本存在安全漏洞，该漏洞源于处理拓扑凭据时反序列化不可信数据，可能导致远程代码执行。

AI Predicted 8.8 Difficulty: Moderate EPSS 1.05% · P64

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-35337

Vulnerability Information
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Vulnerability Title
Apache Storm Client: RCE through Unsafe Deserialization via Kerberos TGT Credential Handling
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Storm 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Storm是美国阿帕奇（Apache）基金会的一套采用Clojure（并发编程语言）开发的开源分布式实时计算系统。 Apache Storm 2.8.6之前版本存在安全漏洞，该漏洞源于处理拓扑凭据时反序列化不可信数据，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Storm Client 0 ~ 2.8.6 -

II. Public POCs for CVE-2026-35337

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III. Intelligence Information for CVE-2026-35337

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Other References for CVE-2026-35337 (1)

Same Patch Batch · Apache Software Foundation · 2026-04-13 · 5 CVEs total

CVE-2026-33858 Apache Airflow: Unsafe Deserialization via Legacy Serialization Keys (__type/__var) Bypass
CVE-2025-66236 Apache Airflow: Secrets from Airflow config file logged in plain text in DAG run logs UI
CVE-2026-34476 Apache SkyWalking MCP: Server-Side Request Forgery via SW-URL Header in MCP Server
CVE-2026-35565 Apache Storm UI: Stored Cross-Site Scripting (XSS) via Unsanitized Topology Metadata in St

IV. Related Vulnerabilities

Same product: Apache Storm Client
Same vendor: Apache Software Foundation
Same weakness: CWE-502

V. Comments for CVE-2026-35337

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