Authenticated data disclosure via external XML entities
Published Sep 14, 2026 · Updated Sep 14, 2026
XXE in IBM Business Automation Workflow allows remote authenticated users to read sensitive data or consume memory via crafted XML. IBM identifies XML processing as the vulnerable locus but has not published the parser, request path, or exact failure to disable external entity resolution. Successful exploitation requires low-privileged authentication and can disclose data accessible to the parser or degrade service through memory consumption.
Summary
What happened
XXE in IBM Business Automation Workflow allows remote authenticated users to read sensitive data or consume memory via crafted XML. IBM identifies XML processing as the vulnerable locus but has not published the parser, request path, or exact failure to disable external entity resolution. Successful exploitation requires low-privileged authentication and can disclose data accessible to the parser or degrade service through memory consumption.
The record
- CVE
- CVE-2026-12756
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Vendor
- IBM
- Product
- IBM Business Automation Workflow
- Classifications
- CWE-611
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 14, 2026CVE publishedPublication date reported by the CVE source.
- Sep 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=24.0.0 <=24.0.0 Interim Fix 009
- Affected versionversion=24.0.1 <=24.0.1 Interim Fix 008
- Affected versionversion=25.0.0 <=25.0.0 Interim Fix 005
- Affected versionversion=26.0.0 <=26.0.0 Interim Fix 001
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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