CVE-2026-42778
CRITICALApache MINA: CWE-502 Deserialization of Untrusted Data (take 2)
Title source: cnaExploitation Summary
EIP tracks 2 public exploits for CVE-2026-42778. PoCs published by adminlove520, Akinfue.
AI-analyzed exploit summary The repository only contains a LICENSE file with no exploit code, technical details, or proof-of-concept. It is a placeholder without any functional content related to CVE-2026-42778.
Description
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 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 <= 2.1.110, 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
Exploits (2)
The repository only contains a LICENSE file with no exploit code, technical details, or proof-of-concept. It is a placeholder without any functional content related to CVE-2026-42778.
The repository claims to provide an exploit for CVE-2026-42778, a deserialization vulnerability in Apache MINA, but only includes a README with vague details and external download links. No actual exploit code is present, and the focus is on directing users to external sources.
References (1)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H