PT-2026-138003

CVE-2026-49939

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Published

2026-11-06

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Updated

2026-11-06

Description by

Score
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In Apache James server prior version 3.9.1 improper Access Control List processing is exposed by the JMAP protocol which do not account for negative rules positionned by IMAP protocol.
This results in users being able to administer folders in JMAP despite having being explicitly denied the right to do so in IMAP.
Users are recommended to upgrade to version 3.9.1 which fixes this issue.
Impacts
Researchers
Vendors
Affected products
Weakness enumeration
CWE-284: Improper Access Control
Related identifiers
CVE-2026-49939
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