{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/products/mina-2.2/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":9.8,"id":"CVE-2026-41635"}],"_cs_exploited":false,"_cs_products":["MINA 2.0","MINA 2.1","MINA 2.2"],"_cs_severities":["critical"],"_cs_tags":["apache-mina","rce","deserialization","cve-2026-41635"],"_cs_type":"advisory","_cs_vendors":["Apache"],"content_html":"\u003cp\u003eA critical arbitrary code execution vulnerability, CVE-2026-41635, has been identified in Apache MINA, an open-source network application framework. The vulnerability affects versions 2.0.0 through 2.0.27, 2.1.0 through 2.1.10, and 2.2.0 through 2.2.5. The flaw lies within the AbstractIoBuffer.resolveClass() method, where a branch lacks class validation, bypassing the classname allowlist. This allows remote attackers with low privileges to execute arbitrary code on systems using Apache MINA when the IoBuffer.getObject() method is called. Successful exploitation can lead to full system compromise, data exfiltration, and further attacks on interconnected systems. It is imperative that organizations using Apache MINA apply the necessary patches immediately to mitigate this critical risk.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies a vulnerable application using Apache MINA versions 2.0.0-2.0.27, 2.1.0-2.1.10, or 2.2.0-2.2.5.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious payload containing serialized Java objects designed to exploit the class validation bypass in \u003ccode\u003eAbstractIoBuffer.resolveClass()\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eThe attacker sends a network request to the vulnerable application that triggers the \u003ccode\u003eIoBuffer.getObject()\u003c/code\u003e method.\u003c/li\u003e\n\u003cli\u003eThe \u003ccode\u003eIoBuffer.getObject()\u003c/code\u003e method deserializes the attacker-controlled data without proper class validation due to the flaw in \u003ccode\u003eAbstractIoBuffer.resolveClass()\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eThe malicious serialized object executes arbitrary code within the context of the application.\u003c/li\u003e\n\u003cli\u003eThe attacker gains control of the application server.\u003c/li\u003e\n\u003cli\u003eThe attacker uses their access to move laterally within the network.\u003c/li\u003e\n\u003cli\u003eThe attacker exfiltrates sensitive data or deploys ransomware.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-41635 allows attackers to execute arbitrary code on systems utilizing vulnerable versions of Apache MINA. This can lead to a full compromise of the affected system, including data exfiltration, denial of service, or further attacks on interconnected systems. The vulnerability is remotely exploitable with low privileges, increasing the potential for widespread impact across various sectors relying on Apache MINA for network communication. A successful attack poses a high risk to the confidentiality, integrity, and availability of affected systems and data.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImmediately patch Apache MINA to the latest version to remediate CVE-2026-41635, as recommended by the vendor advisory (\u003ca href=\"https://lists.apache.org/thread/1l91w1mqsb3lwfd504fs045ylxntt2tm)\"\u003ehttps://lists.apache.org/thread/1l91w1mqsb3lwfd504fs045ylxntt2tm)\u003c/a\u003e.\u003c/li\u003e\n\u003cli\u003eImplement network monitoring to detect suspicious activity related to deserialization attempts, as suggested by the CCB\u0026rsquo;s recommendation to upscale monitoring capabilities.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u0026ldquo;Detect Apache MINA Vulnerable Class Deserialization Attempt\u0026rdquo; to identify potential exploitation attempts based on suspicious class names in network traffic.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-27T16:09:56Z","date_published":"2026-04-27T16:09:56Z","id":"/briefs/2026-04-apache-mina-rce/","summary":"A critical arbitrary code execution vulnerability (CVE-2026-41635) exists in Apache MINA versions 2.0.0 through 2.0.27, 2.1.0 through 2.1.10, and 2.2.0 through 2.2.5 due to missing class validation in the AbstractIoBuffer.resolveClass() method, potentially allowing attackers to execute arbitrary code on applications using Apache MINA.","title":"Apache MINA Arbitrary Code Execution Vulnerability","url":"https://feed.craftedsignal.io/briefs/2026-04-apache-mina-rce/"}],"language":"en","title":"CraftedSignal Threat Feed — MINA 2.2","version":"https://jsonfeed.org/version/1.1"}