openssl_encrypt versions before 1.4.0 contain a sandbox escape vulnerability in IsolatedPluginExecutor that exposes Python type objects in restricted exec() builtins. Attackers can traverse the Python class hierarchy via __class__.__mro__.__subclasses__() to access system functions and execute arbitrary OS commands.
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Mon, 17 Aug 2026 11:15:00 +0000
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| Description | openssl_encrypt versions before 1.4.0 contain a sandbox escape vulnerability in IsolatedPluginExecutor that exposes Python type objects in restricted exec() builtins. Attackers can traverse the Python class hierarchy via __class__.__mro__.__subclasses__() to access system functions and execute arbitrary OS commands. | |
| Title | openssl_encrypt before 1.4.0 Sandbox Escape via Type Hierarchy | |
| Weaknesses | CWE-95 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-17T11:04:58.588Z
Reserved: 2026-08-17T10:48:45.738Z
Link: CVE-2026-74899
No data.
Status : Received
Published: 2026-08-17T11:16:44.917
Modified: 2026-08-17T11:16:44.917
Link: CVE-2026-74899
No data.
OpenCVE Enrichment
Updated: 2026-08-17T13:00:13Z