Fix GuideData Integrity
How to Fix CWE-502: Deserialization of Untrusted Data
Verified by Precogs Threat Research
The application deserializes data from untrusted sources without validation, allowing attackers to inject malicious objects.
⚠️ Impact if Unpatched
Remote code execution, denial of service, authentication bypass, arbitrary object instantiation.
Step-by-Step Remediation
- Use safe serialization formats (JSON) instead of native object serialization
- If native serialization is required, implement strict type allowlists
- Never deserialize data from untrusted sources without validation
- Implement integrity checks (HMAC signatures) on serialized data
- Isolate deserialization in sandboxed environments
Don't just patch one instance.
Scan your entire codebase for all instances of Deserialization of Untrusted Data.
Scan for Free with Precogs AI →Recent Vulnerabilities (CWE-502)
26 vulnerabilities in our database match Deserialization of Untrusted Data.
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CVE-2026-4860: CVE-2026-4860: Unsafe Deserialization in wvp-GB28181-pro
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CVE-2025-54136: Remote Code Execution in Cursor AI Code Editor via malicious MCP servers
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CVE-2025-68664: LangChain Serialization Injection Flaw — Secret extraction via unsafe deserializ
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CVE-2024-12703: Deserialization of Untrusted Data — Classic RCE pattern
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CVE-2025-27779: LangChain Deserialization of Untrusted Data
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CVE-2026-0500: SAP Wily Introscope Unsafe Deserialization RCE
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CVE-2025-49113: RoundCube Webmail Deserialization Remote Code Execution
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CVE-2025-61882: Oracle EBS Zero-Day — Pre-authentication RCE in BI Publisher
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CVE-2026-0677: Deserialization of Untrusted Data vulnerability in TotalSuite TotalContest Lite
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