CVE•Published 2026-06-17•Modified 2026-07-14•1 article on news•5 live references•NVD data

CVE-2026-47103Fgmacedo · Python_statemachine

Vulnerability data via NVD (ingested)

CVSS v3.1

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 36% of all CVEs

Weaknesses (CWE)

CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')CWE-94Improper Control of Generation of Code ('Code Injection')

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.

Timeline

Published 2026-06-17

Modified 2026-07-14

External references

NVD MITRE Exploit-DB trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-47103

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Fgmacedo Python Statemachine"

All exposed Fgmacedo Python Statemachine instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Python Statemachine"

HTTP body or banner mentions "Python Statemachine" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-47103