CVE-2026-91197

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/flowable/flowable-engine
https://github.com/flowable/flowable-engine/blob/0779d68e5a3385b74d8acb8bc37901ff54513249/modules/flowable-engine/src/main/java/org/flowable/engine/impl/bpmn/diagram/ProcessDiagramLayoutFactory.java#L101-L118
https://github.com/flowable/flowable-engine/blob/0779d68e5a3385b74d8acb8bc37901ff54513249/modules/flowable5-engine/src/main/java/org/activiti/engine/impl/bpmn/diagram/ProcessDiagramLayoutFactory.java#L97-L114
https://github.com/flowable/flowable-engine/issues/4216
https://www.vulncheck.com/advisories/flowable-flowable-engine-through-8.0.0-xxe-via-processdiagramlayoutfactory

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 23:19

Updated : 2026-09-14 23:19

NVD link : CVE-2026-91197

Mitre link : CVE-2026-91197

CVE.ORG link : CVE-2026-91197

JSON object : View

Products Affected

No product.

CWE

CWE-611

Improper Restriction of XML External Entity Reference

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