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CVE-2026-94301 is an incomplete-fix vulnerability in Apache MINA. The resolveProxyClass() override intended to remediate CVE-2026-47065 was committed only to the 2.2.x branch and was not backported to the 2.0.x or 2.1.x maintenance branches. Consequently, Apache MINA 2.0.0 through 2.0.30 and 2.1.0 through 2.1.14 remain susceptible to an acceptMatchers allow-list bypass using java.lang.reflect.Proxy objects during deserialization.
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An Apache MINA deserialization allow-list bypass caused by the absence of a resolveProxyClass() override in the 2.0.X and 2.1.X maintenance branches. Releases advertised as fixed remain vulnerable because the prior remediation was applied only to 2.2.X.
A critical Apache MINA deserialization-related allow-list bypass caused by an incomplete backport of the prior CVE-2026-47065 fix. Apache MINA 2.0.x and 2.1.x releases through 2.0.30 and 2.1.14 lack the required resolveProxyClass() override, allowing the same java.lang.reflect.Proxy-based acceptMatchers filter bypass.
An Apache MINA allow-list bypass affecting the 2.0.x and 2.1.x maintenance branches because the intended resolveProxyClass() override was not backported to those branches.
A critical Apache MINA deserialization-related allow-list bypass caused by a missing resolveProxyClass() override in the 2.0.x and 2.1.x maintenance branches. Although the original fix was announced as fully addressed, it was committed only to 2.2.x, leaving Apache MINA 2.0.0 through 2.0.30 and 2.1.0 through 2.1.14 vulnerable.
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