Local privilege escalation via wildcard web aliases
Published Jul 6, 2026 · Updated Jul 6, 2026
Untrusted search path in B&R Industrial Automation APROL before R 4.4-01P5 allows local users to escalate privileges through web aliases. The Apache configuration uses wildcard AliasMatch directives that let an authenticated local user influence which system or project path the web server resolves. Exploitation requires an existing local account and can expose APROL data or alter files with the web server's elevated access.
Summary
What happened
Untrusted search path in B&R Industrial Automation APROL before R 4.4-01P5 allows local users to escalate privileges through web aliases. The Apache configuration uses wildcard AliasMatch directives that let an authenticated local user influence which system or project path the web server resolves. Exploitation requires an existing local account and can expose APROL data or alter files with the web server's elevated access.
The record
- CVE
- CVE-2026-6901
- Published
- Jul 6, 2026
- Updated
- Jul 6, 2026
- Vendor
- B&R Industrial Automation GmbH
- Product
- APROL
- Classifications
- CWE-426, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 6, 2026CVE publishedPublication date reported by the CVE source.
- Jul 6, 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=0 <R 4.4-01P5
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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Public exploit references
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Technologies
Your stack
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Your stack
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