RouterCVE

CVE-2026-41635

CRITICAL
9.8CVSS v3
—CVSS v2
0.64% EPSS (exploit probability)
CWE-502CWE

Description

Apache MINA's AbstractIoBuffer.resolveClass() contains two branches, one of them (for static classes or primitive types) does not check the class at all, bypassing the classname allowlist and allowing arbitrary code to be executed.




The fix checks if the class is present in the accepted class filter before calling Class.forName(). 






Affected versions are Apache MINA 2.0.0 <= 2.0.27, 2.1.0 <= 2.1.10, and


2.2.0 <= 2.2.5.





The problem is resolved in Apache MINA 2.0.28, 2.1.11, and 2.2.6 by
applying the classname allowlist earlier.





Affected are applications using Apache MINA that call  IoBuffer.getObject().





Applications using Apache MINA are advised to upgrade.

CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected routers (0)

No routers currently mapped to this CVE in our database.

External references