CVE-2026-41409: Apache MINA: CWE-502 Deserialization of Untrusted Data
The fix for CVE-2024-52046 in Apache MINA AbstractIoBuffer.getObject() was incomplete. The classname allowlist of classes allowed to be deserialized was applied too late after a static initializer in a class to be read might already have been executed.
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
Other sources
The fix for CVE-2024-52046 in Apache MINA AbstractIoBuffer.getObject() was incomplete. The classname allowlist of classes allowed to be deserialized was applied too late after a static initializer in a class to be read might already have been executed.
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
— IBM
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache MINAto a version that resolves this vulnerability.Fixed in 2.0.28 - Upgrade
Upgrade
Apache MINAto a version that resolves this vulnerability.Fixed in 2.1.11 - Upgrade
Upgrade
Apache MINAto a version that resolves this vulnerability.Fixed in 2.2.6
Event History
Frequently Asked Questions
What is the severity of CVE-2026-41409?
CVE-2026-41409 has been assessed as a high-severity vulnerability due to the potential for remote code execution through deserialization of untrusted data.
How do I fix CVE-2026-41409?
To mitigate CVE-2026-41409, upgrade Apache MINA to versions 2.0.28, 2.1.11, or 2.2.6 or later.
What versions of Apache MINA are affected by CVE-2026-41409?
CVE-2026-41409 affects Apache MINA versions 2.0.0 to 2.0.27, 2.1.0 to 2.1.10, and 2.2.0 to 2.2.5.
What type of vulnerability is CVE-2026-41409?
CVE-2026-41409 falls under CWE-502, indicating a deserialization of untrusted data vulnerability.
Is there a workaround for CVE-2026-41409 pending patching?
No official workaround for CVE-2026-41409 has been provided; the best mitigation is to upgrade to the patched versions.