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CVE-2026-41635— Apache MINA: AbstractIoBuffer.resolveClass() null-clazz Branch Skips acceptMatchers Filter — Full Object Deserialization RCE

CVSS 9.8 · Critical EPSS 0.14% · P33
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I. Basic Information for CVE-2026-41635

Vulnerability Information
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Vulnerability Title
Apache MINA: AbstractIoBuffer.resolveClass() null-clazz Branch Skips acceptMatchers Filter — Full Object Deserialization RCE
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache MINA 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache MINA是美国阿帕奇（Apache）基金会的一款网络应用程序框架。该产品主要用于开发高性能和高可伸缩性的网络应用程序。 Apache MINA 2.0.0版本至2.0.27版本、2.1.0版本至2.1.10版本和2.2.0版本至2.2.5版本存在代码问题漏洞，该漏洞源于AbstractIoBuffer.resolveClass()中静态类或原始类型分支未检查类名允许列表，可能导致任意代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

VendorProductAffected VersionsCPESubscribe
Apache Software FoundationApache MINA 2.2.0 ~ 2.2.5 -

II. Public POCs for CVE-2026-41635

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III. Intelligence Information for CVE-2026-41635

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Same Patch Batch · Apache Software Foundation · 2026-04-27 · 13 CVEs total

CVE-2026-414099.8 CRITICALApache MINA: CWE-502 Deserialization of Untrusted Data
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CVE-2026-33454Apache Camel: Inbound Header Filter Missing in MailHeaderFilterStrategy Allows Remote Code
CVE-2026-40022Apache Camel Platform HTTP Main: Authentication Bypass on Non-Root Context Paths in camel
CVE-2026-40858Apache Camel: Camel-Infinispan: Unsafe Deserialization in Remote Aggregation Repository
CVE-2026-40453Apache Camel JMS, Apache Camel CoAP, Apache Camel Google PubSub: Incomplete fix for CVE-20
CVE-2026-40860Apache Camel: Unsafe Deserialization of JMS ObjectMessage in camel-jms, camel-sjms, camel-
CVE-2026-40048Apache Camel PQC: Unsafe Deserialization from FileBasedKeyLifecycleManager
CVE-2026-40473Apache Camel Mina: Unsafe Deserialization in MinaConverter.toObjectInput() via TCP/UDP

IV. Related Vulnerabilities

Same product: Apache MINA
Same vendor: Apache Software Foundation
Same weakness: CWE-502

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