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CVE-2026-91197 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/flowable/flowable-engine/issues/4216	CISA-ADP
https://github.com/flowable/flowable-engine	[email protected]
https://github.com/flowable/flowable-engine/blob/0779d68e5a3385b74d8acb8bc37901ff54513249/modules/flowable5-engine/src/main/java/org/activiti/engine/impl/bpmn/diagram/ProcessDiagramLayoutFactory.java#L97-L114	[email protected]
https://github.com/flowable/flowable-engine/blob/0779d68e5a3385b74d8acb8bc37901ff54513249/modules/flowable-engine/src/main/java/org/flowable/engine/impl/bpmn/diagram/ProcessDiagramLayoutFactory.java#L101-L118	[email protected]
https://github.com/flowable/flowable-engine/issues/4216	[email protected]
https://www.vulncheck.com/advisories/flowable-flowable-engine-through-8.0.0-xxe-via-processdiagramlayoutfactory	[email protected]

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-611	Improper Restriction of XML External Entity Reference	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 16, 2026	CVE Modified	CISA-ADP
Sep 14, 2026	New CVE Received	[email protected]