Improper access control in Apache MINA - CVE-2026-41635

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Main Vulnerability Database Vulnerabilities #VU128405

Improper access control in Apache MINA - CVE-2026-41635

Published: April 28, 2026


Vulnerability identifier: #VU128405
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-41635
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Apache Foundation
Affected software:
Apache MINA

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to improper access control in AbstractIoBuffer.resolveClass() when deserializing objects via IoBuffer.getObject(). A remote attacker can send a specially crafted serialized object to execute arbitrary code.

The issue affects the branch for static classes or primitive types, which bypasses the classname allowlist.


How to mitigate CVE-2026-41635

Install security update from vendor's website.

Sources