{
  "cveId": "CVE-2026-59846",
  "url": "https://patchblox.com/security/cve/CVE-2026-59846",
  "summary": "CVE-2026-59846 is fixed in 7 products on 1 platform, first by libssh-4 0.9.6-2ubuntu0.22.04.8, released July 21, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "libssh: A flaw was found in libssh",
  "description": "A flaw was found in libssh. A malicious username expanded through %r in ProxyCommand handling can inject shell metacharacters, exposing environment variables and causing unintended shell behavior.",
  "published": "2026-07-21T06:17:00Z",
  "severity": "low",
  "cvss": 8.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.0012,
  "epssPercentile": 0.01826,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libssh",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "0.10.6-0\u002Bdeb12u3",
      "fix": "DEBIAN-CVE-2026-59846",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-59846",
      "released": "2026-07-31T14:18:19Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.11.5-0\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-59846",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-59846",
      "released": "2026-07-31T14:18:19Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "Debian 14",
      "fixedVersion": "0.12.1-1",
      "fix": "DEBIAN-CVE-2026-59846",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-59846",
      "released": "2026-07-31T14:18:19Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "Fedora 43",
      "fixedVersion": "0.11.5-1.fc43",
      "fix": "FEDORA-2026-063CAA9112",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-063caa9112",
      "released": "2026-07-21T10:20:42Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "RHEL 10",
      "fixedVersion": "0.12.0-3.el10_2",
      "fix": "RHSA-2026:55855",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-55855",
      "released": "2026-08-18T23:09:46Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "RHEL 8",
      "fixedVersion": "0:0.9.6-17.el8_10",
      "fix": "RHSA-2026:62218",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-62218",
      "released": "2026-09-13T12:46:35Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "RHEL 9",
      "fixedVersion": "0:0.10.4-19.el9_8",
      "fix": "RHSA-2026:62217",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-62217",
      "released": "2026-09-13T12:48:01Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "almalinux 10",
      "fixedVersion": "0.12.0-3.el10_2",
      "fix": "ALSA-2026:55855",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-55855",
      "released": "2026-08-17T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "almalinux 8",
      "fixedVersion": "0.9.6-17.el8_10",
      "fix": "ALSA-2026:62218",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-62218",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "almalinux 9",
      "fixedVersion": "0.10.4-19.el9_8",
      "fix": "ALSA-2026:62217",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-62217",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "amzn 2023",
      "fixedVersion": "0.10.6-1.amzn2023.0.9",
      "fix": "ALAS2023-2026-3096",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3096",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "ol 10",
      "fixedVersion": "0:0.12.0-3.el10_2",
      "fix": "ELSA-2026-55855",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-55855",
      "released": "2026-08-17T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "ol 8",
      "fixedVersion": "0:0.9.6-17.el8_10",
      "fix": "ELSA-2026-62218-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-62218-0",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "ol 9",
      "fixedVersion": "0:0.10.4-19.el9_8",
      "fix": "ELSA-2026-62217-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-62217-0",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.11.5-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21444-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21444-1",
      "released": "2026-07-25T17:18:11Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "rocky 10",
      "fixedVersion": "0:0.12.0-3.el10_2",
      "fix": "RLSA-2026:55855",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-55855",
      "released": "2026-08-18T12:07:31Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "rocky 8",
      "fixedVersion": "0:0.9.6-17.el8_10",
      "fix": "RLSA-2026:62218",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-62218",
      "released": "2026-09-02T06:01:10Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "rocky 9",
      "fixedVersion": "0:0.10.4-19.el9_8",
      "fix": "RLSA-2026:62217",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-62217",
      "released": "2026-09-02T06:05:06Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "sles 15.6",
      "fixedVersion": "0.9.8-150600.11.15.1",
      "fix": "SUSE-SU-2026:3330-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3330-1",
      "released": "2026-07-28T09:36:03Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "sles 15.7",
      "fixedVersion": "0.9.8-150600.11.15.1",
      "fix": "SUSE-SU-2026:3330-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3330-1",
      "released": "2026-07-28T09:36:03Z"
    },
    {
      "platform": "linux",
      "product": "libssh",
      "release": "sles 16.0",
      "fixedVersion": "0.11.5-160000.1.1",
      "fix": "SUSE-SU-2026:22956-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22956-1",
      "released": "2026-07-25T17:15:12Z"
    },
    {
      "platform": "linux",
      "product": "libssh-4",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.9.6-2ubuntu0.22.04.8",
      "fix": "libssh-4 0.9.6-2ubuntu0.22.04.8",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libssh-4-0.9.6-2ubuntu0.22.04.8",
      "released": "2026-07-21T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-4",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "0.10.6-2ubuntu0.5",
      "fix": "libssh-4 0.10.6-2ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libssh-4-0.10.6-2ubuntu0.5",
      "released": "2026-07-21T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-4",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "0.11.3-1ubuntu2.1",
      "fix": "libssh-4 0.11.3-1ubuntu2.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libssh-4-0.11.3-1ubuntu2.1",
      "released": "2026-07-21T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-config",
      "release": "Fedora 43",
      "fixedVersion": "0.11.5-1.fc43",
      "fix": "FEDORA-2026-063CAA9112",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-063caa9112",
      "released": "2026-07-21T10:20:42Z"
    },
    {
      "platform": "linux",
      "product": "libssh-config",
      "release": "RHEL 8",
      "fixedVersion": "0:0.9.6-17.el8_10",
      "fix": "RHSA-2026:62218",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-62218",
      "released": "2026-09-13T12:46:35Z"
    },
    {
      "platform": "linux",
      "product": "libssh-config",
      "release": "RHEL 9",
      "fixedVersion": "0:0.10.4-19.el9_8",
      "fix": "RHSA-2026:62217",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-62217",
      "released": "2026-09-13T12:48:01Z"
    },
    {
      "platform": "linux",
      "product": "libssh-config",
      "release": "almalinux 10",
      "fixedVersion": "0.12.0-3.el10_2",
      "fix": "ALSA-2026:55855",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-55855",
      "released": "2026-08-17T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-config",
      "release": "almalinux 8",
      "fixedVersion": "0.9.6-17.el8_10",
      "fix": "ALSA-2026:62218",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-62218",
      "released": "2026-09-01T00:00:00Z"
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    {
      "platform": "linux",
      "product": "libssh-config",
      "release": "almalinux 9",
      "fixedVersion": "0.10.4-19.el9_8",
      "fix": "ALSA-2026:62217",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-62217",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-config",
      "release": "amzn 2023",
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      "fix": "ALAS2023-2026-3096",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3096",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-config",
      "release": "ol 10",
      "fixedVersion": "0:0.12.0-3.el10_2",
      "fix": "ELSA-2026-55855",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-55855",
      "released": "2026-08-17T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-config",
      "release": "ol 8",
      "fixedVersion": "0:0.9.6-17.el8_10",
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      "url": "https://patchblox.com/security/fix/linux/elsa-2026-62218-0",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-config",
      "release": "ol 9",
      "fixedVersion": "0:0.10.4-19.el9_8",
      "fix": "ELSA-2026-62217-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-62217-0",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-debuginfo",
      "release": "Fedora 43",
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      "fix": "FEDORA-2026-063CAA9112",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-063caa9112",
      "released": "2026-07-21T10:20:42Z"
    },
    {
      "platform": "linux",
      "product": "libssh-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "0.10.6-1.amzn2023.0.9",
      "fix": "ALAS2023-2026-3096",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3096",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "0.11.5-1.fc43",
      "fix": "FEDORA-2026-063CAA9112",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-063caa9112",
      "released": "2026-07-21T10:20:42Z"
    },
    {
      "platform": "linux",
      "product": "libssh-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "0.10.6-1.amzn2023.0.9",
      "fix": "ALAS2023-2026-3096",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3096",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-devel",
      "release": "Fedora 43",
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      "fix": "FEDORA-2026-063CAA9112",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-063caa9112",
      "released": "2026-07-21T10:20:42Z"
    },
    {
      "platform": "linux",
      "product": "libssh-devel",
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      "fix": "RHSA-2026:62218",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-62218",
      "released": "2026-09-13T12:46:35Z"
    },
    {
      "platform": "linux",
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      "release": "RHEL 9",
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      "fix": "RHSA-2026:62217",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-62217",
      "released": "2026-09-13T12:48:01Z"
    },
    {
      "platform": "linux",
      "product": "libssh-devel",
      "release": "almalinux 10",
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      "fix": "ALSA-2026:55855",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-55855",
      "released": "2026-08-17T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-devel",
      "release": "almalinux 8",
      "fixedVersion": "0.9.6-17.el8_10",
      "fix": "ALSA-2026:62218",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-62218",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-devel",
      "release": "almalinux 9",
      "fixedVersion": "0.10.4-19.el9_8",
      "fix": "ALSA-2026:62217",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-62217",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-devel",
      "release": "amzn 2023",
      "fixedVersion": "0.10.6-1.amzn2023.0.9",
      "fix": "ALAS2023-2026-3096",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3096",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-devel",
      "release": "ol 10",
      "fixedVersion": "0:0.12.0-3.el10_2",
      "fix": "ELSA-2026-55855",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-55855",
      "released": "2026-08-17T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-devel",
      "release": "ol 8",
      "fixedVersion": "0:0.9.6-17.el8_10",
      "fix": "ELSA-2026-62218-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-62218-0",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-devel",
      "release": "ol 9",
      "fixedVersion": "0:0.10.4-19.el9_8",
      "fix": "ELSA-2026-62217-0",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-62217-0",
      "released": "2026-09-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-gcrypt-4",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.9.6-2ubuntu0.22.04.8",
      "fix": "libssh-gcrypt-4 0.9.6-2ubuntu0.22.04.8",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libssh-gcrypt-4-0.9.6-2ubuntu0.22.04.8",
      "released": "2026-07-21T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libssh-gcrypt-4",
      "release": "Ubuntu 24.04.5 LTS (noble)",
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      "fix": "libssh-gcrypt-4 0.10.6-2ubuntu0.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libssh-gcrypt-4-0.10.6-2ubuntu0.5",
      "released": "2026-07-21T08:16:00Z"
    }
  ],
  "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"
  }
}