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CVE-2026-91197: Improper Restriction of XML External Entity Reference in flowable flowable-engine

0
High
VulnerabilityCVE-2026-91197cvecve-2026-91197
Published: 09/14/2026 (09/14/2026, 22:10:55 UTC)
Source: CVE Database V5
Vendor/Project: flowable
Product: flowable-engine

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.

CVSS v4.0

Score 7.1high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Affected software

flowable

flowable-engine

Affected versions
>=0 <=8.0.0

Technical Details

Data Version
5.2
Assigner Short Name
VulnCheck
Date Reserved
2026-09-14T21:55:42.613Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6aa875f055bf5e2cf5ba9998

Added to database: 09/14/2026, 22:32:16 UTC

Last updated: 09/14/2026, 22:32:16 UTC

Views: 1

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