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VulnerabilityPublished

CVE-2026-41409: 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 · fixed in 2.0.28 : patch Apache MINA as a priority.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.

Contested

Critical score, yet low EPSS after six months
EPSS
0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.0.28
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 27 Apr 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 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Apache Software FoundationApache MINAAffected
  • >=2.2.0 <=2.2.5
  • >=2.1.0 <=2.1.10
  • >=2.0.0 <=2.0.27
Fixed in–
MavenApache Software Foundation/org.apache.mina:mina.corepkg:maven/Apache Software Foundation/org.apache.mina:mina.coreOther threatsAffected
  • >=2.2.0 <=2.2.5
  • >=2.1.0 <=2.1.10
  • >=2.0.0 <=2.0.27
Fixed in–
Mavenorg.apache.mina/mina-corepkg:maven/org.apache.mina/mina-coreOther threatsAffected
  • =2.0.0
  • <=2.0.27
  • =2.1.0
  • <=2.1.10
  • =2.2.0
  • <=2.2.5
Fixed in–

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

AI-suggested

A fix is available in Apache MINA versions 2.0.28, 2.1.11, and 2.2.6, which apply the classname allowlist earlier in the deserialization process. Applications using affected versions that call IoBuffer.getObject() should upgrade to one of these fixed versions to remediate the vulnerability. Patch status is confirmed by the vendor advisory. No alternative mitigations or temporary fixes are indicated.

Description

The fix for CVE-2024-52046 in Apache MINA AbstractIoBuffer.getObject() was incomplete. The classname allowlist of classes allowed to be deserialized was applied too late after a static initializer in a class to be read might already have been executed. Affected versions are Apache MINA 2.0.0 <= 2.0.27, 2.1.0 <= 2.1.10, and 2.2.0 <= 2.2.5. The problem is resolved in Apache MINA 2.0.28, 2.1.11, and 2.2.6 by applying the classname allowlist earlier. Affected are applications using Apache MINA that call IoBuffer.getObject(). Applications using Apache MINA are advised to upgrade

References

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