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CVE-2026-118636 - **UNSUPPORTED WHEN ASSIGNED**  JavaNativeMessageDecoder in the MINA 3.0 codec module calls ObjectInputStream.readObject

**UNSUPPORTED WHEN ASSIGNED**  JavaNativeMessageDecoder in the MINA 3.0 codec module calls ObjectInputStream.readObject() on frame bytes with no class filter, so an application that puts it in front of an untrusted peer is open to gadget-chain RCE. As the 3.0.0 branch is inactive, we do not plan to release a version that fixes this issue. Users are recommended to use the latest Apache MINA 2.2.X branch.
CRITICAL
Severity & confidence
Source severitycritical
Platform severitycritical
Confidencehigh
Exploitationunknown
CVSS9.8
Affected
Vendorsapache
Reporting sources (1)
NIST NVD - National Vulnerability Database
Open source ↗
Timeline & provenance
Published2026-10-31T21:16:53
Last updated2026-11-03T21:05:36
Ingested2026-11-02T13:22:30
FreshnessNEAR-REAL-TIME
Threat typevulnerability
Recommended action
No recommended action published with this item - review the original source.
Next steps
  1. Identify affected systems in your environment.
  2. Apply the vendor patch or mitigation guidance.
  3. Review logs for indicators described in the advisory.
  4. Follow the affected vendor/product to track updates.
Confidence explanation
Reported by a government or cert-grade source (CISA, NCSC, NVD, ENISA, MSRC).
Source type: standards · Original: NIST NVD - National Vulnerability Database