Is CVE-2026-94301 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-94301 being exploited in the wild.

How severe is CVE-2026-94301?

Critical severity, with a CVSS score of 9.8, published 21 September 2026.

Which products and versions are affected?

Apache Mina 2.0.0 through 2.0.30, 2.1.0 through 2.1.14.

Is there a fix for CVE-2026-94301?

A patch was published on 2026-06-02: Fix for CVE-2026-47065 committed to 2.2.X branch only; 2.0.X and 2.1.X branches never received the resolveProxyClass() override Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-94301 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-94301?

Check whether you run Apache Mina at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-94301: Apache MINA filter bypass via unpatched resolveProxyClass

CVE-2026-94301 · Severity: critical · CVSS 9.8 · Published 2026-09-21

Apache MINA, a networking framework used to build scalable server and client applications, contains an incomplete fix for a critical filter bypass vulnerability. The security patch was only applied to one maintenance branch, leaving deployed versions in two other branches vulnerable to the same attack that allows malicious data to bypass access control filters, potentially exposing the application to unauthorized network access.

Technologies: Apache Mina. Vendors: Apache.

Quick answers

Is CVE-2026-94301 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-94301 being exploited in the wild.
How severe is CVE-2026-94301?: Critical severity, with a CVSS score of 9.8, published 21 September 2026.
Which products and versions are affected?: Apache Mina 2.0.0 through 2.0.30, 2.1.0 through 2.1.14.
Is there a fix for CVE-2026-94301?: A patch was published on 2026-06-02: Fix for CVE-2026-47065 committed to 2.2.X branch only; 2.0.X and 2.1.X branches never received the resolveProxyClass() override Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-94301 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-94301?: Check whether you run Apache Mina at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The resolveProxyClass() method override that was meant to fix CVE-2026-47065 (a java.lang.reflect.Proxy-based acceptMatchers filter bypass) was committed only to the 2.2.X branch. The 2.0.X and 2.1.X maintenance branches never received this fix, making versions 2.0.30 and 2.1.14 (and all earlier releases on those lines, including those marked as "fixed" in CVE-2026-47065) vulnerable to the same allow-list bypass. An attacker with network access can exploit java.lang.reflect.Proxy to circumvent the input validation filters.

Affected products

Apache MINA 2.0.0 through 2.0.30, 2.1.0 through 2.1.14

Timeline

2026-09-21: disclosed: CVE-2026-94301 published
2026-06-02: patched: Fix for CVE-2026-47065 committed to 2.2.X branch only; 2.0.X and 2.1.X branches never received the resolveProxyClass() override

References

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