AIKIDO-2026-654406
simpleeval is vulnerable to Sandbox Bypass
59
Medium Risk
This Affects:
simpleevalTL;DR
simpleeval does not include the operator module's attrgetter, itemgetter, and methodcaller helpers in its disallowed-function list. When an evaluated expression can reach the operator module, chaining these helpers lets it access arbitrary attributes and invoke arbitrary methods, escaping the evaluator's restrictions. The patch adds attrgetter, itemgetter, methodcaller, and operator.call to the blocked functions set.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and your evaluator exposes the operator module or its functions to evaluated expressions.
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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