Authenticated bean method invocation via deferred expressions
Published Sep 14, 2026 · Updated Sep 14, 2026
Expression language injection in Alfresco Activiti 7.1.0.M6 and earlier allows remote authenticated users to invoke Spring bean methods. The ProcessVariablesPayloadValidator rejects only ${...} values, while MailActivityBehavior passes accepted #{...} variable data to ExpressionManager for evaluation in the full Spring context. ROLE_ACTIVITI_USER access and a mail task using textVar or htmlVar are required; resulting access is limited to methods exposed by registered application beans.
Summary
What happened
Expression language injection in Alfresco Activiti 7.1.0.M6 and earlier allows remote authenticated users to invoke Spring bean methods. The ProcessVariablesPayloadValidator rejects only ${...} values, while MailActivityBehavior passes accepted #{...} variable data to ExpressionManager for evaluation in the full Spring context. ROLE_ACTIVITI_USER access and a mail task using textVar or htmlVar are required; resulting access is limited to methods exposed by registered application beans.
The record
- CVE
- CVE-2026-91145
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Vendor
- Alfresco
- Product
- Activiti
- Classifications
- CWE-917
- 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=7.1.0.M6
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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