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Open-source package vulnerability · Maven

CVE-2026-41635: Apache MINA vulnerable to Deserialization of Untrusted Data

criticalCVSS 3.1 9.8GHSA-8297-v2rf-2p32

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.

Published Apr 27, 2026 · Updated May 7, 2026

Affected packages

org.apache.mina:mina-core

Ecosystem
Maven
Affected
>= 2.0.0, < 2.0.28
Fixed in
2.0.28
Check
mvn dependency:tree -Dincludes=org.apache.mina:mina-core

org.apache.mina:mina-core

Ecosystem
Maven
Affected
>= 2.1.0, < 2.1.11
Fixed in
2.1.11
Check
mvn dependency:tree -Dincludes=org.apache.mina:mina-core

org.apache.mina:mina-core

Ecosystem
Maven
Affected
>= 2.2.0, < 2.2.6
Fixed in
2.2.6
Check
mvn dependency:tree -Dincludes=org.apache.mina:mina-core

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

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.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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