Deserialization of Untrusted Data Affecting mina package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.62% (50th percentile)

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  • Snyk IDSNYK-DEBIAN12-MINA-16322782
  • published30 Apr 2026
  • disclosed27 Apr 2026

Introduced: 27 Apr 2026

CVE-2026-41635  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

There is no fixed version for Debian:12 mina.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mina package and not the mina package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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 Base Scores

version 3.1