CVE-2026-8476— Disk Cache Deserialization Remote Code Execution Vulnerability
Possible ATT&CK Techniques 3AI
T1055 · Process Injection T1059 · Command and Scripting Interpreter T1203 · Exploitation for Client ExecutionAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| IBM | Langflow OSS | 1.0.0≤ 1.10.0 | affected |
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I. Basic Information for CVE-2026-8476
Vulnerability Information
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Vulnerability Title
Disk Cache Deserialization Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Langflow OSS 1.0.0 through 1.10.0 contain a critical remote code execution vulnerability in the disk-based caching mechanism. The AsyncDiskCache class uses Python's unsafe pickle.loads() function to deserialize cached objects from disk without validation, integrity verification, or authentication, enabling arbitrary code execution when malicious pickle payloads are processed. Attackers who can influence cached data through file system access, malicious workflow inputs, custom components, or API manipulation can achieve complete system compromise with the privileges of the Langflow server process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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
IBM Langflow OSS 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM Langflow OSS是美国IBM公司的一个开源的低代码可视化AI工作流构建工具，它让开发者能通过拖拽组件的方式快速搭建、部署和迭代AI智能体与RAG应用，同时支持用Python进行深度定制以集成企业系统。 IBM Langflow OSS 1.0.0至1.10.0及之前版本存在反序列化注入漏洞，该漏洞源于磁盘缓存机制使用不安全的pickle.loads()函数反序列化缓存对象，可能导致任意代码执行。
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 |
|---|---|---|---|---|
| IBM | Langflow OSS | 1.0.0 ~ 1.10.0 | cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-8476
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|---|
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Vendor Advisories for CVE-2026-8476 (1)
Same Patch Batch · IBM · 2026-07-17 · 34 CVEs total
| CVE-2026-9135 | 9.9 CRITICAL | Policies Component Dynamic CodeInput Fields Bypass Custom Component Validation |
| CVE-2026-8859 | 9.9 CRITICAL | Path Traversal in APIRequest Component via Content-Disposition Header |
| CVE-2026-8635 | 9.9 CRITICAL | Arbitrary Code Execution in Python Interpreter Component |
| CVE-2026-8481 | 9.9 CRITICAL | Remote Code Execution via Code Validation Endpoint |
| CVE-2026-13446 | 9.8 CRITICAL | Langflow is affected by remote code execution, denial of service, path traversal, and expo |
| CVE-2026-9202 | 9.8 CRITICAL | Unauthenticated User Registration Could Lead to Remote Code Execution |
| CVE-2026-9198 | 9.8 CRITICAL | Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation |
| CVE-2026-9103 | 9.8 CRITICAL | Unauthenticated Superuser Token Issuance via Auto-Login Endpoint |
| CVE-2026-8505 | 9.8 CRITICAL | Authentication Bypass in Webhook Endpoints Allowed Unauthorized Flow Execution |
| CVE-2026-15091 | 9.3 CRITICAL | Multiple Vulnerabilities in IBM Engineering AI hub. |
| CVE-2026-7667 | 8.8 HIGH | Path Traversal Vulnerability in API Request Component Content-Disposition Header Processin |
| CVE-2026-8056 | 8.8 HIGH | Parameter Injection Vulnerability in API Graph Execution Engine |
| CVE-2026-7755 | 8.8 HIGH | MCP Server Configuration Validator Bypass via File Upload API |
| CVE-2026-14499 | 8.8 HIGH | Langflow is affected by remote code execution, denial of service, path traversal, and expo |
| CVE-2026-13445 | 8.1 HIGH | Langflow is affected by remote code execution, denial of service, path traversal, and expo |
| CVE-2026-13448 | 8.1 HIGH | Langflow is affected by remote code execution, denial of service, path traversal, and expo |
| CVE-2026-13473 | 8.1 HIGH | IBM Storage Protect Client is vulnerable to Heap-Based Buffer Overflow |
| CVE-2026-9762 | 7.8 HIGH | IBM® Data Server driver for JDBC and SQLJ is vulnerable to remote code execution when jdbc |
| CVE-2026-7754 | 7.7 HIGH | SSRF Protection Configuration Vulnerability |
| CVE-2026-7872 | 7.5 HIGH | Path Traversal Vulnerability in File Component Leading to Arbitrary File Read and Authenti |
Showing top 20 of 34 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Langflow OSS
- CVE-2026-13445
Langflow is affected by remote code execution, denial of ser - CVE-2026-13446
Langflow is affected by remote code execution, denial of ser - CVE-2026-13448
Langflow is affected by remote code execution, denial of ser - CVE-2026-14499
Langflow is affected by remote code execution, denial of ser - CVE-2026-7667
Path Traversal Vulnerability in API Request Component Conten
Same vendor: IBM
- CVE-2026-3482
IBM Sterling B2B Integrator and IBM Sterling File Gateway Au - CVE-2026-13445
Langflow is affected by remote code execution, denial of ser - CVE-2026-13446
Langflow is affected by remote code execution, denial of ser - CVE-2026-13448
Langflow is affected by remote code execution, denial of ser - CVE-2026-13473
IBM Storage Protect Client is vulnerable to Heap-Based Buffe
Same weakness: CWE-502
- CVE-2026-13190
PersistenceFramework Unsafe Type Resolution Vulnerability in - CVE-2026-13185
PersistenceFramework Cookie Deserialization Vulnerability in - CVE-2026-24232
NVIDIA Transformers4Rec反序列化漏洞致代码执行 - CVE-2026-64606
Apache Fory, Apache Fory: Class-registration bypass through - CVE-2026-63767
ktransformers Unauthenticated Pickle Deserialization RCE via
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