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CVE-2026-41635

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CVE-2026-41635

Published: Apr 27, 2026

Modified: Apr 28, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

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.

VendorProductVersions

Apache Software Foundation

Apache MINA

affected
2.2.0 - <= 2.2.5
affected
2.1.0 - <= 2.1.10
affected
2.0.0 - <= 2.0.27

Weaknesses (CWE)

CWE-502

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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