AIKIDO-2026-166664
simpleeval is vulnerable to Sandbox Bypass
31
Low Risk
This Affects:
simpleevalTL;DR
simpleeval blocks os.popen and os.system but not the os module's other exec, spawn, and posix_spawn family functions. An evaluator that wraps the os module without narrowing allowed_attrs lets an expression invoke one of those unblocked functions to run an external process. The fix adds every os function whose name starts with exec, spawn, or posix_spawn to the disallowed-functions set.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you wrap the os module with ModuleWrapper without restricting allowed_attrs.
Background info
simpleeval is vulnerable to Sandbox Bypass in versions 0.0.1 - 1.0.7.
How to fix this
Upgrade the simpleeval library to the patch version.
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