CVE-2026-47103Critical· 9.8▾ AbyssalPoC availablePython StateMachine versions 3.0.0 before 3.2.0 contains a remote code execution vulnerability that allows attackers to execute arbitrary code by supplying malicious SCXML documents containing crafted `<data expr="...">` attributes evalu…
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 53.9 · likelihood 0.3 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Jul 29.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
1.2%
1 GitHub repo
1.2% → 1.4%
Last analysed / modified upstream
Python StateMachine versions 3.0.0 before 3.2.0 contains a remote code execution vulnerability that allows attackers to execute arbitrary code by supplying malicious SCXML documents containing crafted <data expr="..."> attributes evaluated unsafely. The SCXMLProcessor passes attacker-controlled expression strings through a call chain ending in Python's built-in eval() without sandboxing, enabling arbitrary code execution in the context of the hosting process.
python_statemachine >= 3.0.0, < 3.2.0Upgrade past the affected range:
python_statemachine 3.2.0Affected packages:
python-statemachine >= 3.0.0, < 3.2.0Patched in:
python-statemachine 3.2.0Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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