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VulnerabilityPublished

CVE-2026-94301: Apache MINA · Deserialization of Untrusted Data

Affects Apache MINASource CVE Database V5

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Mentioned vulnerabilities

Not known to be exploited · CVSS 9.8 Critical : upgrade to 2.1.15 or 2.0.31 as a priority.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.1.15, 2.0.31
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade Apache MINA and org.apache.mina/mina-core to 2.1.15 or 2.0.31.

Affected software

ProductAffectedFixed in
Apache Software FoundationApache MINAAffected
  • >=2.1.0 <2.1.15
Fixed in
  • 2.1.15
Apache Software FoundationApache MINAAffected
  • >=2.0.0 <2.0.31
Fixed in
  • 2.0.31
Mavenorg.apache.mina/mina-corepkg:maven/org.apache.mina/mina-coreOther threatsAffected
  • >=2.0.0 <2.0.31
  • >=2.1.0 <2.1.15
Fixed in
  • 2.0.31
  • 2.1.15

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, consider avoiding use of affected versions or applying any recommended temporary mitigations from the vendor.

Description

CVE-2026-94301 is a critical deserialization vulnerability in Apache MINA that affects versions 2.0.0 up to but not including 2.0.31 and 2.1.0 up to but not including 2.1.15. The flaw results from a missing override of the resolveProxyClass() method in these branches, which allows an allow-list bypass. This vulnerability has a CVSS score of 9.8, indicating a severe impact on confidentiality, integrity, and availability. No known exploits have been reported in the wild. The vulnerability is distinct from the 2.2.x branch, where the related issue was fixed. No official patches or vendor advisories are provided in the input data.

References

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