{
  "cveId": "CVE-2026-32240",
  "url": "https://patchblox.com/security/cve/CVE-2026-32240",
  "summary": "CVE-2026-32240 is fixed in 6 products on 1 platform, first by capnproto 0.6.1-1ubuntu1\u002Besm1, released March 12, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "capnproto: Cap\u0027n Proto is a data interchange format and capability-based RPC system",
  "description": "Cap\u0027n Proto is a data interchange format and capability-based RPC system. Prior to 1.4.0, when using Transfer-Encoding: chunked, if a chunk\u0027s size parsed to a value of 2^64 or larger, it would be truncated to a 64-bit integer. In theory, this bug could enable HTTP request/response smuggling. This vulnerability is fixed in 1.4.0.",
  "published": "2026-03-12T13:16:00Z",
  "severity": "Medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
  "epss": 0.00243,
  "epssPercentile": 0.15529,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "capnproto",
      "release": "Debian 14",
      "fixedVersion": "1.4.0-2",
      "fix": "DEBIAN-CVE-2026-32240",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-32240",
      "released": "2026-03-12T20:16:05Z"
    },
    {
      "platform": "linux",
      "product": "capnproto",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.6.1-1ubuntu1\u002Besm1",
      "fix": "capnproto 0.6.1-1ubuntu1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-capnproto-0.6.1-1ubuntu1-esm1",
      "released": "2026-03-12T13:16:00Z"
    },
    {
      "platform": "linux",
      "product": "capnproto",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.7.0-6ubuntu0.1~esm1",
      "fix": "capnproto 0.7.0-6ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-capnproto-0.7.0-6ubuntu0.1-esm1",
      "released": "2026-03-12T13:16:00Z"
    },
    {
      "platform": "linux",
      "product": "capnproto",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.8.0-2ubuntu2\u002Besm1",
      "fix": "capnproto 0.8.0-2ubuntu2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-capnproto-0.8.0-2ubuntu2-esm1",
      "released": "2026-03-12T13:16:00Z"
    },
    {
      "platform": "linux",
      "product": "capnproto",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.0.1-4ubuntu0.1~esm1",
      "fix": "capnproto 1.0.1-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-capnproto-1.0.1-4ubuntu0.1-esm1",
      "released": "2026-03-12T13:16:00Z"
    },
    {
      "platform": "linux",
      "product": "capnproto",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.1.0-2.1ubuntu0.1~esm1",
      "fix": "capnproto 1.1.0-2.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-capnproto-1.1.0-2.1ubuntu0.1-esm1",
      "released": "2026-03-12T13:16:00Z"
    },
    {
      "platform": "linux",
      "product": "capnproto",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.4.0-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21062-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21062-1",
      "released": "2026-06-26T07:23:30Z"
    },
    {
      "platform": "linux",
      "product": "libcapnp-0.6.1",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.6.1-1ubuntu1\u002Besm1",
      "fix": "libcapnp-0.6.1 0.6.1-1ubuntu1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libcapnp-0.6.1-0.6.1-1ubuntu1-esm1",
      "released": "2026-03-12T13:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libcapnp-0.7.0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.7.0-6ubuntu0.1~esm1",
      "fix": "libcapnp-0.7.0 0.7.0-6ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libcapnp-0.7.0-0.7.0-6ubuntu0.1-esm1",
      "released": "2026-03-12T13:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libcapnp-0.8.0",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.8.0-2ubuntu2\u002Besm1",
      "fix": "libcapnp-0.8.0 0.8.0-2ubuntu2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libcapnp-0.8.0-0.8.0-2ubuntu2-esm1",
      "released": "2026-03-12T13:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libcapnp-1.0.1",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.0.1-4ubuntu0.1~esm1",
      "fix": "libcapnp-1.0.1 1.0.1-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libcapnp-1.0.1-1.0.1-4ubuntu0.1-esm1",
      "released": "2026-03-12T13:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libcapnp-1.1.0",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.1.0-2.1ubuntu0.1~esm1",
      "fix": "libcapnp-1.1.0 1.1.0-2.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libcapnp-1.1.0-1.1.0-2.1ubuntu0.1-esm1",
      "released": "2026-03-12T13:16:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}