CVE-2026-47103 Details
Description
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.
A remote code execution vulnerability has been identified in Python StateMachine versions 3.0.0 prior to 3.2.0. This vulnerability allows attackers to execute arbitrary code by injecting malicious SCXML documents with crafted `<data expr=
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 18, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/fgmacedo/python-statemachine/security/advisories/GHSA-v4jc-pm6r-3vj8 | CISA-ADP | ExploitVendor Advisory |
| https://github.com/fgmacedo/python-statemachine/releases/tag/v3.2.0 | [email protected] | Release Notes |
| https://github.com/fgmacedo/python-statemachine/security/advisories/GHSA-v4jc-pm6r-3vj8 | [email protected] | ExploitVendor Advisory |
| https://github.com/SaiTeja-Erukude/CVE-2026-47103-python-statemachine-rce | [email protected] | |
| https://www.vulncheck.com/advisories/python-statemachine-rce-via-scxml-eval-injection | [email protected] | Third Party AdvisoryVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
| CWE-95 | Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| fgmacedo python statemachine | >= 3.0.0, < 3.2.0 |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 28, 2026 | CVE Modified | [email protected] |
| Aug 28, 2026 | CVE Modified | CISA-ADP |
| Jul 14, 2026 | CVE Modified | [email protected] |
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 18, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | New CVE Received | [email protected] |