CVE-2026-94301 Apache MINA - Broken Access Control

Apache MINA 2.0.29, 2.1.13, and later 2.0.x and 2.1.x versions contain an acceptMatchers filter bypass caused by missing resolveProxyClass() override, letting attackers bypass allow-list filters, exploit requires crafted proxy classes.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.39% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
21 September 2026
Updated
15 October 2026
Weakness
CWE-502

Vendor fix

Upgrade to MINA 2.2.8 or later where the issue is fully addressed.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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