{
  "cveId": "CVE-2026-104016",
  "url": "https://patchblox.com/security/cve/CVE-2026-104016",
  "summary": "CVE-2026-104016 is fixed in jackson-dataformats-binary on 1 platform by DEBIAN-CVE-2026-104016 (version 2.22.4-1), released November 3, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "jackson-dataformats-binary: ProtobufParser parses length-prefixed protobuf string and bytes fields by checking (_inputPtr \u002B len) \u003C= _inputEnd and...",
  "description": "ProtobufParser parses length-prefixed protobuf string and bytes fields by checking (_inputPtr \u002B len) \u003C= _inputEnd and then, on the fast path, calling _finishShortText(len). Both use 32-bit signed integer arithmetic. When an attacker supplies a varint decoding to a length near Integer.MAX_VALUE, _inputPtr \u002B len overflows to a negative value, the bounds check passes, and _finishShortText(len) reaches TextBuffer.expandCurrentSegment(len), which performs Arrays.copyOf with no cap and throws OutOfMemoryError: Requested array size exceeds VM limit.    The JVM refuses arrays larger than Integer.MAX_VALUE - 8 before consulting available heap, so -Xmx tuning does not mitigate the issue. StreamReadConstraints.maxStringLength and maxDocumentLength do not gate this path: a 33-byte payload is far below any document-length cap and the string-length check does not fire before the allocation. This was confirmed empirically against shipping artifacts with maxStringLength, maxDocumentLength and maxNestingDepth all configured.    A February 2026 hardening commit added the equivalent overflow guard to the packed-array-length and message-length paths but left the string-length call sites unguarded. No privileges or user interaction beyond the ability to submit data for parsing are required.",
  "published": "2026-10-28T00:17:10Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00679,
  "epssPercentile": 0.52593,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "jackson-dataformats-binary",
      "release": "Debian 14",
      "fixedVersion": "2.22.4-1",
      "fix": "DEBIAN-CVE-2026-104016",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-104016",
      "released": "2026-11-03T18:58:21Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}