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CVE-2026-42779 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: May 1, 2026

Apache MINA - Remote Code Execution

Published: May 1, 2026Updated: May 1, 2026Remote Exploitable

Overview

Apache MINA 2.1.0 <= 2.1.11 and 2.2.0 <= 2.2.6 contain a remote code execution caused by bypassing classname allowlist in AbstractIoBuffer.resolveClass(), letting attackers execute arbitrary code remotely, exploit requires use of IoBuffer.getObject().

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Attackers can execute arbitrary code remotely, potentially leading to full system compromise.

Mitigation

Upgrade to Apache MINA 2.1.12 or 2.2.7 or later.

References

https://lists.apache.org/thread/fhlx5k91hrkgyzh7yk1nghrn3k27gxy0

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Details

CVE ID: CVE-2026-42779
Severity: Critical
CVSS Score: 9.8
Type: undefined
Status: new

CWE

CWE-502

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H