CVE-2026-47103 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-47103CRITICAL

fgmacedo python-statemachine — Python StateMachine 3.0.0 < 3.2.0 RCE via SCXML eval() Injection

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   H   H    9.3   .0117   65.0     —

AFFECTED
  Product              Versions  Fixed
  python-statemachine  3.0.0 –   —

TIMELINE
  May 18  Reserved by VulnCheck
  Jun 17  EXPLOIT PUBLISHED — CVE-2026-47103 (fgmacedo python-statemachine). Public exploit reference added.
  Jun 17  Published (CNA: VulnCheck)

CWE-94, CWE-95 · CNA: VulnCheck · CVSS v4.0 · 3 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 18, 2026	Reserved	Reserved by VulnCheck
June 17, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-47103 (fgmacedo python-statemachine). Public exploit reference added.
June 17, 2026	Published	Published (CNA: VulnCheck)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
fgmacedo	python-statemachine	—	3.0.0	—

Weaknesses

CWE-94 · CWE-95

References (3)

https://github.com/fgmacedo/python-statemachine/releases/tag/v3.2.0 [Release Notes]
https://github.com/fgmacedo/python-statemachine/security/advisories/GHSA-v4jc-pm6r-3vj8 [Exploit, Vendor Advisory]
https://www.vulncheck.com/advisories/python-statemachine-rce-via-scxml-eval-injection [Third Party Advisory, VDB Entry]

Authoritative record: CVE-2026-47103 at cve.org

Vendors: fgmacedo

Weaknesses: CWE-94 · CWE-95

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-47103 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.