Unrated severityNVD Advisory· Published Nov 6, 2026
CVE-2026-49939
CVE-2026-49939
Description
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.
Affected products
1Patches
Vulnerability mechanics
References
1News mentions
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