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TI-2026-31001 Aliases CVE-2026-42779GHSA-vf5j-865m-mq7c

Deserialization of untrusted data in Apache MINA

Priority MEDIUM 51CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 11 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-502.

Summary

The fix for CVE-2026-41635 was not applied to the 2.1.X and 2.2.X branches. Here was the original issue description: Apache MINA's AbstractIoBuffer.resolveClass() contains two branches, one of them (for static classes or primitive types) does not check the class at all, bypassing the classname allowlist and allowing arbitrary code to be executed. The fix checks if the class is present in the accepted class filter before calling Class.forName(). Affected versions are Apache MINA 2.1.0 <= 2.1.11, and 2.2.0 <= 2.2.6. The problem is resolved in Apache MINA 2.1.12, and 2.2.7 by applying the classname allowlist earlier. Affected are applications using Apache MINA that call IoBuffer.getObject(). Applications using Apache MINA are advised to upgrade.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01228 69th percentileScored 2026-11-07
Fix Partial org.apache.mina:mina-core (Maven): 2.1.12, 2.2.7Red Hat: 11 advisoriesRed Hat: 11 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache MINA2.2.X – 2.2.6; 2.1.X – 2.1.11—No fix listedCNA
—org.apache.mina:mina-core (Maven)2.1.0 to before 2.1.122.1.12Patch availableGHSA-vf5j-865m-mq7c
—org.apache.mina:mina-core (Maven)2.2.0 to before 2.2.72.2.7Patch availableGHSA-vf5j-865m-mq7c
  • Apache MINA VendorApache Affected 2.2.X – 2.2.6; 2.1.X – 2.1.11 Fixed in — No fix listed CNA
  • org.apache.mina:mina-core (Maven) Vendor— Affected 2.1.0 to before 2.1.12 Fixed in 2.1.12 Patch available GHSA-vf5j-865m-mq7c
  • org.apache.mina:mina-core (Maven) Vendor— Affected 2.2.0 to before 2.2.7 Fixed in 2.2.7 Patch available GHSA-vf5j-865m-mq7c

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:mina:*:*:*:*:*:*:*:*2.1.0 to before 2.1.12; 2.2.0 to before 2.2.7VulnerableApache
  • cpe:2.3:a:apache:mina:*:*:*:*:*:*:*:* Versions 2.1.0 to before 2.1.12; 2.2.0 to before 2.2.7 Vulnerable ·Apache

Remediation

  • Fix · GHSA-vf5j-865m-mq7c org.apache.mina:mina-core (Maven) Fixed in 2.1.12 Advisory →
  • Fix · GHSA-vf5j-865m-mq7c org.apache.mina:mina-core (Maven) Fixed in 2.2.7 Advisory →

Red Hat 11 advisories

  • RHSA-2026:60259 Released 2026-08-26 · Red Hat rating Important
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.20 security update.
    • OpenShift Developer Tools and Services 4.20 registry.redhat.io/ocp-tools-4/jenkins-rhel9
  • RHSA-2026:60256 Released 2026-08-26 · Red Hat rating Important
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.22 security update.
    • OpenShift Developer Tools and Services 4.22 registry.redhat.io/ocp-tools-4/jenkins-rhel9
  • RHSA-2026:60254 Released 2026-08-26 · Red Hat rating Important
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.21 security update.
    • OpenShift Developer Tools and Services 4.21 registry.redhat.io/ocp-tools-4/jenkins-rhel9
Show 8 more Red Hat advisories
  • RHSA-2026:60252 Released 2026-08-26 · Red Hat rating Important
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.19 security update.
    • OpenShift Developer Tools and Services 4.19 registry.redhat.io/ocp-tools-4/jenkins-rhel9
  • RHSA-2026:60251 Released 2026-08-26 · Red Hat rating Important
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.16 security update.
    • OpenShift Developer Tools and Services 4.16 registry.redhat.io/ocp-tools-4/jenkins-rhel9
  • RHSA-2026:60250 Released 2026-08-26 · Red Hat rating Important
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.18 security update.
    • OpenShift Developer Tools and Services 4.18 registry.redhat.io/ocp-tools-4/jenkins-rhel9
  • RHSA-2026:60249 Released 2026-08-26 · Red Hat rating Important
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.13 security update.
    • OpenShift Developer Tools and Services 4.13 registry.redhat.io/ocp-tools-4/jenkins-rhel8
  • RHSA-2026:60248 Released 2026-08-26 · Red Hat rating Important
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.14 security update.
    • OpenShift Developer Tools and Services 4.14 registry.redhat.io/ocp-tools-4/jenkins-rhel8
  • RHSA-2026:60247 Released 2026-08-26 · Red Hat rating Important
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.12 security update.
    • OpenShift Developer Tools and Services 4.12 registry.redhat.io/ocp-tools-4/jenkins-rhel8
  • RHSA-2026:60246 Released 2026-08-26 · Red Hat rating Important
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.17 security update.
    • OpenShift Developer Tools and Services 4.17 registry.redhat.io/ocp-tools-4/jenkins-rhel9
  • RHSA-2026:60239 Released 2026-08-26 · Red Hat rating Important
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.15 security update.
    • OpenShift Developer Tools and Services 4.15 registry.redhat.io/ocp-tools-4/jenkins-rhel8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Apache MINA — lists.apache.org/thread/fhlx5k91hrkgyzh7yk1nghrn3k27gxy0

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-31000 Apache MINA: CWE-502 Deserialization of Untrusted Data (take 2)Priority MEDIUM 50
    Show all 2 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
OpenShift Developer Tools and ServicesAffectedNo fix yet
Red Hat build of Apache Camel for Spring Boot 4AffectedNo fix yet: Fix deferred
OpenShift Developer Tools and Services 4.12Fixed RHSA-2026:60247
OpenShift Developer Tools and Services 4.13Fixed RHSA-2026:60249
OpenShift Developer Tools and Services 4.14Fixed RHSA-2026:60248
OpenShift Developer Tools and Services 4.15Fixed RHSA-2026:60239
OpenShift Developer Tools and Services 4.16Fixed RHSA-2026:60251
OpenShift Developer Tools and Services 4.17Fixed RHSA-2026:60246
OpenShift Developer Tools and Services 4.18Fixed RHSA-2026:60250
OpenShift Developer Tools and Services 4.19Fixed RHSA-2026:60252
OpenShift Developer Tools and Services 4.20Fixed RHSA-2026:60259
OpenShift Developer Tools and Services 4.21Fixed RHSA-2026:60254
OpenShift Developer Tools and Services 4.22Fixed RHSA-2026:60256
Not affected: 23 products
  • OpenShift Developer Tools and Services 4.12
  • OpenShift Developer Tools and Services 4.13
  • OpenShift Developer Tools and Services 4.14
  • OpenShift Developer Tools and Services 4.15
  • OpenShift Developer Tools and Services 4.16
  • OpenShift Developer Tools and Services 4.17
  • OpenShift Developer Tools and Services 4.18
  • OpenShift Developer Tools and Services 4.19
  • OpenShift Developer Tools and Services 4.20
  • OpenShift Developer Tools and Services 4.21
  • OpenShift Developer Tools and Services 4.22
  • Red Hat AMQ Broker 7
  • Red Hat Data Grid 8
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat Fuse 7
  • Red Hat JBoss Enterprise Application Platform 7
  • Red Hat JBoss Enterprise Application Platform 8
  • Red Hat JBoss Enterprise Application Platform Expansion Pack
  • Red Hat Process Automation 7
  • Red Hat Single Sign-On 7
  • streams for Apache Kafka 2
  • streams for Apache Kafka 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42779
  2. 2026-10-03 Alias added: GHSA-vf5j-865m-mq7c

References

Patch 1

Advisory 2

Other 1

  • TI-2024-34922 Apache MINA: MINA applications using unbounded deserialization may allow RCE CVSS 4.0CRITICAL 10.0
  • TI-2026-31000 Apache MINA: CWE-502 Deserialization of Untrusted Data (take 2) CVSS 3.1CRITICAL 9.8
  • TI-2026-30156 Deserialization of untrusted data in Apache MINA CVSS 3.1CRITICAL 9.8
  • TI-2026-34667 Apache MINA: Critical Deserialization Allow-list Bypass via resolveProxyClass - ZDRES-232 CVSS 3.1CRITICAL 9.8
  • TI-2026-30010 Apache MINA: CWE-502 Deserialization of Untrusted Data CVSS 3.1CRITICAL 9.8
  • TI-2019-00204 Apache MINA SSLFilter security Issue CVSS 3.1HIGH 7.5
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences