CVE-2026-47103 is a critical-severity security vulnerability in python-statemachine (pip), affecting versions >= 3.0.0, < 3.2.0. It is fixed in 3.2.0.
Summary python-statemachine 3.1.2 evaluates <data expr="..."> attributes in SCXML documents using Python's eval(). Any application that passes attacker-controlled SCXML content to SCXMLProcessor is vulnerable to arbitrary code execution in the context of the hosting process. Details SCXMLProcessor.parsescxmlfile() processes SCXML documents and evaluates <data> element expr attributes via the following call chain: _eval() calls Python's built-in eval() directly on the expression string without sandboxing or restriction. PoC Impact This is an eval injection vulnerability (CWE-95). Remote or local code execution depending on whether the consuming application accepts SCXML content from remote users, uploaded files, configuration, plugins, or other untrusted sources.
CVE-2026-47103 has a CVSS score of 9.8 (Critical). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment.
A fixed version is available (3.2.0). Upgrading removes the vulnerable code path.
pip
python-statemachine (>= 3.0.0, < 3.2.0)python-statemachine → 3.2.0 (pip)Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter instead of chasing every advisory.
Kodem's runtime-powered SCA identifies whether CVE-2026-47103 is reachable in your applications. Explore open-source security for your team.
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Upgrade python-statemachine to 3.2.0 or later to resolve this vulnerability.
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
CVE-2026-47103 is a critical-severity security vulnerability in python-statemachine (pip), affecting versions >= 3.0.0, < 3.2.0. It is fixed in 3.2.0.
CVE-2026-47103 has a CVSS score of 9.8 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
python-statemachine (pip) versions >= 3.0.0, < 3.2.0 is affected.
Yes. CVE-2026-47103 is fixed in 3.2.0. Upgrade to this version or later.
Whether CVE-2026-47103 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
Upgrade python-statemachine to 3.2.0 or later.