CVE-2026-41409CWE-502

Apache MINA: CWE-502 Deserialization of Untrusted Data

Critical · published April 27, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
54.6
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00752 · 54.6th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-04-27T09:20Z
EPSS history
Timeline
  • 27 APR 09:20Z
    Apache MINA: CWE-502 Deserialization of Untrusted Data
    cvelistv5