En bref
- CVE-2026-32640 est une vulnérabilité CRITIQUE (CVSS 9.8) touchant simpleeval, simpleeval (danthedeckie).
- Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 0.54%, plus élevée que 45.7% des vulnérabilités.
- Correctif : mettre à jour vers 1.0.5 ou plus récent.
Description
Impact
If the objects passed in as names to SimpleEval have modules or other disallowed / dangerous objects available as attrs.
Additionally, dangerous functions or modules could be accessed by passing them as callbacks to other safe functions to call.
Examples (found by @ByamB4):
Any module where non-underscore attribute chains reach os or sys:
- os.path, pathlib, shutil, glob (direct .os / .sys attributes)
- statistics (has .sys)
- numpy (has .ctypeslib.os and .f2py.sys)
- urllib.parse (has .warnings.sys)
Patches
The latest version 1.0.5 has this issue fixed.
Workarounds
Don't pass in objects or modules which have direct attributes to potentially dangerous items.
Use a wrapper to wrap the potentially vulnerable items (See the ModuleWrapper in version 1.0.5)
NVD description
SimpleEval is a library for adding evaluatable expressions into python projects. Prior to 1.0.5, objects (including modules) can leak dangerous modules through to direct access inside the sandbox. If the objects you've passed in as names to SimpleEval have modules or other disallowed / dangerous objects available as attrs. Additionally, dangerous functions or modules could be accessed by passing them as callbacks to other safe functions to call. The latest version 1.0.5 has this issue fixed. This vulnerability is fixed in 1.0.5.
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