CVE-2026-42778
Apache MINA: deserialization of untrusted data (incomplete fix for CVE-2026-41409)
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 1, 2026
Updated · October 14, 2026
Description
A flaw was found in Apache MINA. An incomplete fix for a deserialization issue in the AbstractIoBuffer.getObject() method allowed a static initializer in a class to be executed before the classname allowlist was applied. This vulnerability allows a remote attacker to execute arbitrary code in applications calling the IoBuffer.getObject() method.
Statement
Red Hat products are affected by this vulnerability. However, the vulnerable code cannot be reached and therefore are not vulnerable. Due to this reason, this flaw has been rated with a low severity.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-502 · Deserialization of Untrusted Data