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Critical

Apache MINA vulnerable to Deserialization of Untrusted Data (CVE-2026-41409 Incomplete Fix)

  • Disclosed: 01.05.2026
  • Updated: 11.10.2026 13:20

The fix for CVE-2026-41409 was not applied to the 2.1.X and 2.2.X branches. Here was the original issue description:

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 2.1.0 <= 2.1.11, and 2.2.0 <= 2.2.6.

The problem is resolved in Apache MINA 2.1.12, and 2.2.7 by applying the classname allowlist earlier.

Affected are applications using Apache MINA that call IoBuffer.getObject().

Applications using Apache MINA are advised to upgrade.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.apache.mina:mina-core >= 2.1.0, < 2.1.12, >= 2.2.0, < 2.2.7 2.1.12, 2.2.7

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-502
Platform
Java / Kotlin (Maven)
Package
org.apache.mina:mina-core
Disclosed
01.05.2026
Updated
11.10.2026 13:20

Sources and licenses

OSV / GitHub Advisory Database - GHSA-995c-6rp3-4m4x - CC BY 4.0

Vulnerability history: org.apache.mina:mina-core

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
8
First → latest
11.2021 06.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 6
  • High 1
  • Medium 1

Disclosures per year

  1. Apache MINA: Critical Deserialization Allow-list Bypass via resolveProxyClass
    Critical · 9.8 CVE-2026-47065 >= 2.2.0, < 2.2.8, >= 2.1.0, < 2.1.13, < 2.0.29 2.2.8, 2.1.13, 2.0.29
  2. Apache MINA vulnerable to Deserialization of Untrusted Data (CVE-2026-41409 Incomplete Fix) this entry
    Critical · 9.8 CVE-2026-42778 >= 2.1.0, < 2.1.12, >= 2.2.0, < 2.2.7 2.1.12, 2.2.7
  3. Apache MINA vulnerable to Deserialization of Untrusted Data (CVE-2026-41635 Incomplete Fix)
    Critical · 9.8 CVE-2026-42779 >= 2.1.0, < 2.1.12, >= 2.2.0, < 2.2.7 2.1.12, 2.2.7
  4. Apache MINA Vulnerable to Deserialization of Untrusted Data (CVE-2024-52046 Incomplete Fix)
    Critical · 9.8 CVE-2026-41409 >= 2.0.0, < 2.0.28, >= 2.1.0, < 2.1.11, >= 2.2.0, < 2.2.6 2.0.28, 2.1.11, 2.2.6
  5. Apache MINA vulnerable to Deserialization of Untrusted Data
    Critical · 9.8 CVE-2026-41635 >= 2.0.0, < 2.0.28, >= 2.1.0, < 2.1.11, >= 2.2.0, < 2.2.6 2.0.28, 2.1.11, 2.2.6
  6. Apache MINA Deserialization RCE Vulnerability
    Critical · 9.8 CVE-2024-52046 >= 2.2.0, < 2.2.4, >= 2.1.0, < 2.1.10, >= 2.0.0-M1, < 2.0.27 2.2.4, 2.1.10, 2.0.27
  7. Cleartext Transmission of Sensitive Information in Apache MINA
    High · 7.5 CVE-2019-0231 < 2.0.21, >= 2.1.0, < 2.1.1 2.0.21, 2.1.1
  8. Infinite loop in Apache MINA
    Medium · 6.5 CVE-2021-41973 >= 2.1.0, < 2.1.5, < 2.0.22 2.1.5, 2.0.22

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