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NVD CRITICAL: CVE-2026-74886 — openssl_encrypt versions before 1.4.0 contain a plugin sandbox bypass vulnerabil...

·Source: NIST NVD

Updated:

Executive Summary

openssl_encrypt versions before 1.4.0 contain a plugin sandbox bypass vulnerability where the PluginImportGuard blocks a different set of modules than the AST analyzer's DANGEROUS_MODULES set. Attackers can bypass AST analysis through string obfuscation or encoding to import unblocked dangerous modules like sys, shutil, multiprocessing, importlib, and pickle for arbitrary code execution.

Analysis

openssl_encrypt versions before 1.4.0 contain a plugin sandbox bypass vulnerability where the PluginImportGuard blocks a different set of modules than the AST analyzer's DANGEROUS_MODULES set. Attackers can bypass AST analysis through string obfuscation or encoding to import unblocked dangerous modules like sys, shutil, multiprocessing, importlib, and pickle for arbitrary code execution. CVSS Score: 9.8. Published: 2026-08-17T11:16:43.390.

Indicators of Compromise (1)

CVE (1)
CVE-2026-74886
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Aug 17, 2026. Verified by: NIST.

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