Denial of Service Vulnerability in Apache James Mime4J Library
CVE-2026-85111

8.7HIGH

Key Information:

Vendor

Apache
Status
Apache James
Vendor
CVE Published:
6 November 2026

What is CVE-2026-85111?

The Apache James Mime4J library experiences a Denial of Service vulnerability due to the allocation of resources without limits or throttling when parsing Mime messages. This flaw can lead to excessive resource consumption, rendering the application unresponsive. Users are advised to upgrade to Apache James server version 3.9.1, which incorporates the fixed Mime4J 0.8.15 to mitigate this issue.

Affected Version(s)

Apache James 0 < 3.9.1

Apache James 0 < 3.9.1

References

https://lists.apache.org/thread.html/j1bql696qvg935lp8zo0...
vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2026-85108
related

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mike Read
.