Answer in brief
CVE-2026-47103 records a Critical severity (CVSS 9.8) vulnerability in Python StateMachine 3.0.0 < 3.2.0 RCE via SCXML eval() Injection. The current sources do not mark it as known exploited. The current feed maps fgmacedo/python-statemachine (generic), python-statemachine (pip). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps fgmacedo/python-statemachine (generic), python-statemachine (pip). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| fgmacedo/python-statemachinegeneric | >=3.0.0 <3.2.0 | 3.2.0 |
| python-statemachinepip | >=3.0.0,<3.2.0 | 3.2.0 |
Published upstream
Jun 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
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.
Quoted source text, attributed separately from HOL analysis.