title: Apache James server: Privilege escalation via JMX pre-authentication deserialisation
description: Apache James prior to version 3.7.5 and 3.8.0 exposes a JMX endpoint on localhost subject to pre-authentication deserialisation of untrusted data.
Given a deserialisation gadjet, this could be leveraged as part of an exploit chain that could result in privilege escalation.
Note that by default JMX endpoint is only bound locally.
We recommend users to:
- Upgrade to a non-vulnerable Apache James version
- Run Apache James isolated from other processes (docker - dedicated virtual machine)
- If possible turn off JMX
problem types: CWE-502 Deserialization of Untrusted Data
affected:
{
defaultStatus: unaffected
product: Apache James server
vendor: Apache Software Foundation
versions:
lessThanOrEqual: 3.7.4, status: affected, version: 0, versionType: semver
lessThanOrEqual: 3.8.0, status: affected, version: 3.8, versionType: custom
}
metrics:
other: [
content: {'text': 'low'}
type: Textual description of severity
]