CVE-2026-49939
Last modified
CVE-2026-49939 is a vulnerability of currently unknown severity. 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..
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.
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache James | >= 3.9.0, < 3.9.1 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-49939?
How severe is CVE-2026-49939?
How do I fix CVE-2026-49939?
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-49932In parseParts of PduParser.java, there is a possible out of …7.8
- CVE-2026-49933In handle_le_monitor_device_event of msft.cc, there is a pos…7.8
- CVE-2026-49934In multiple functions of MmiUtils.java, there is a possible …7.8
- CVE-2026-49935In getXmlFileNameForUser of LocaleManagerService.java, there…4
- CVE-2026-49937In multiple functions of MessageQueueBase.h, there is a poss…7.8
- CVE-2026-49938A improper access control vulnerability in Fortinet FortiPor…6.5
- CVE-2026-4994A vulnerability was found in wandb OpenUI up to 1.0/3.5-turb…3.5
- CVE-2026-49940Net::CIDR::Set versions through 0.20 for Perl accept non-ASC…6.5
- CVE-2026-49941Net::CIDR::Set versions through 0.20 for Perl did not valida…7.5
- CVE-2026-49942Net::CIDR::Set versions through 0.20 for Perl did not valida…7.3
- CVE-2026-49943CZ.NIC BIRD Internet Routing Daemon through 2.19.0 contains …6.3
- CVE-2026-49944Rejected reason: This CVE ID has been rejected or withdrawn …
Are you affected by CVE-2026-49939?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
