{
  "cveId": "CVE-2026-54896",
  "url": "https://patchblox.com/security/cve/CVE-2026-54896",
  "summary": "CVE-2026-54896 is fixed in ruby-oj on 1 platform, first by DEBIAN-CVE-2026-54896, released July 3, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "ruby-oj: Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem",
  "description": "Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.2, when in object mode, Oj.dump is vulnerable to a heap buffer overflow when serializing Exception objects with a large :indent value. The serializer allocates a buffer sized for the object\u0027s attributes but does not account for the indent bytes added on each write. With indent: 5000, the accumulation of 5,000-byte indent strings overflows the 13,150-byte heap allocation, corrupting adjacent heap memory. This issue has been fixed in version 3.17.2.",
  "published": "2026-07-01T00:16:32Z",
  "severity": "",
  "epss": 0.002,
  "epssPercentile": 0.09968,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "ruby-oj",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "3.14.2-1\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-54896",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54896",
      "released": "2026-07-03T14:54:39Z"
    },
    {
      "platform": "linux",
      "product": "ruby-oj",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "3.16.3-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-54896",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54896",
      "released": "2026-07-03T14:54:39Z"
    },
    {
      "platform": "linux",
      "product": "ruby-oj",
      "release": "Debian 14",
      "fixedVersion": "3.17.3-1",
      "fix": "DEBIAN-CVE-2026-54896",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54896",
      "released": "2026-07-03T14:54:39Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}