CVE-2026-118636

Full vulnerability record from the local CVENow database.

Description

**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.

Severity

CRITICAL

CVSS score

9.8 (v3.1)

Vulnerability status

Received

Source identifier

[email protected]

Published

2026-10-31 21:16:53.203000

Last modified

2026-10-31 21:16:53.203000

View original CVE JSON

{
  "id": "CVE-2026-118636",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-31T21:16:53.203",
  "lastModified": "2026-10-31T21:16:53.203",
  "vulnStatus": "Received",
  "cveTags": [
    {
      "sourceIdentifier": "[email protected]",
      "tags": [
        "unsupported-when-assigned"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "**UNSUPPORTED WHEN ASSIGNED** \n\nJavaNativeMessageDecoder in the MINA 3.0 codec module calls ObjectInputStream.readObject() on frame bytes with no class filter, so an\napplication that puts it in front of an untrusted peer is open to gadget-chain RCE.\n\nAs the 3.0.0 branch is inactive, we do not plan to release a version that fixes this issue. \n\nUsers are recommended to use the latest Apache MINA 2.2.X branch."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache MINA",
          "defaultStatus": "unaffected",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "packageName": "org.apache.mina:mina-core",
          "packageURL": "pkg:maven/org.apache.mina/mina-core",
          "versions": [
            {
              "version": "3.0.0",
              "lessThanOrEqual": "3.0.0-M2",
              "versionType": "maven",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://lists.apache.org/thread.html/h76nwcrkvsffhsk2kq6cjzc6srtnty7x",
      "source": "[email protected]"
    },
    {
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-118636",
      "source": "[email protected]"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/10/31/3",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}