CVE-2026-91197
Medium
Description
Flowable flowable-engine through 8.0.0 contains an XML external entity injection vulnerability in ProcessDiagramLayoutFactory.parseXml() that fails to disable external entity resolution when parsing deployed BPMN resources. Attackers with process deployment privileges can embed DOCTYPE declarations with external entities in BPMN files to read arbitrary local files or trigger requests to internal network endpoints when diagram layout is computed.
SeverityMedium
CVSS6.5
Exploit probability—
ProductFlowable-engine
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-611XML external entity (XXE)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| flowable flowable-engine | v ≤ 8.0.0 | — |
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