{
  "cveId": "CVE-2026-55654",
  "url": "https://patchblox.com/security/cve/CVE-2026-55654",
  "summary": "CVE-2026-55654 is fixed in 7 products on 1 platform, first by RHSA-2026:47757, released June 22, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "openssh: A flaw was found in OpenSSH",
  "description": "A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds read, occurs during the cleanup of GSSAPI (Generic Security Service Application Programming Interface) indicators when a trailing NULL termination is missing in the auth-indicators array. A remote attacker, under specific configurations involving GSSAPI authentication and a Kerberos environment, could exploit this to cause the SSH authentication path to crash or abort. This leads to a denial of service (DoS), impacting the availability of the SSH service.",
  "published": "2026-06-22T23:18:14Z",
  "severity": "low",
  "cvss": 7.7,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
  "epss": 0.00652,
  "epssPercentile": 0.51522,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "openssh",
      "release": "Debian 14",
      "fixedVersion": "1:10.4p1-5",
      "fix": "DEBIAN-CVE-2026-55654",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-55654",
      "released": "2026-06-23T04:17:40Z"
    },
    {
      "platform": "linux",
      "product": "openssh",
      "release": "RHEL 10",
      "fixedVersion": "9.9p1-25.el10_2",
      "fix": "RHSA-2026:47757",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-47757",
      "released": "2026-06-22T23:18:14Z"
    },
    {
      "platform": "linux",
      "product": "openssh",
      "release": "RHEL 9",
      "fixedVersion": "0:9.9p1-9.el9_8",
      "fix": "RHSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-47756",
      "released": "2026-07-31T14:20:33Z"
    },
    {
      "platform": "linux",
      "product": "openssh",
      "release": "almalinux 10",
      "fixedVersion": "9.9p1-25.el10_2.alma.1",
      "fix": "ALSA-2026:47757",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47757",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh",
      "release": "almalinux 9",
      "fixedVersion": "9.9p1-9.el9_8.alma.1",
      "fix": "ALSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47756",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh",
      "release": "ol 10",
      "fixedVersion": "0:9.9p1-25.0.1.el10_2",
      "fix": "ELSA-2026-47757",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47757",
      "released": "2026-07-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh",
      "release": "ol 9",
      "fixedVersion": "0:9.9p1-9.0.1.el9_8",
      "fix": "ELSA-2026-47756",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47756",
      "released": "2026-08-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh",
      "release": "rocky 10",
      "fixedVersion": "0:9.9p1-25.el10_2.rocky.0.1",
      "fix": "RLSA-2026:47757",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-47757",
      "released": "2026-07-30T12:06:30Z"
    },
    {
      "platform": "linux",
      "product": "openssh",
      "release": "rocky 9",
      "fixedVersion": "0:9.9p1-9.el9_8.rocky.0.1",
      "fix": "RLSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-47756",
      "released": "2026-07-30T18:03:34Z"
    },
    {
      "platform": "linux",
      "product": "openssh-askpass",
      "release": "RHEL 9",
      "fixedVersion": "0:9.9p1-9.el9_8",
      "fix": "RHSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-47756",
      "released": "2026-07-31T14:20:33Z"
    },
    {
      "platform": "linux",
      "product": "openssh-askpass",
      "release": "almalinux 10",
      "fixedVersion": "9.9p1-25.el10_2.alma.1",
      "fix": "ALSA-2026:47757",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47757",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-askpass",
      "release": "almalinux 9",
      "fixedVersion": "9.9p1-9.el9_8.alma.1",
      "fix": "ALSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47756",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-askpass",
      "release": "ol 10",
      "fixedVersion": "0:9.9p1-25.0.1.el10_2",
      "fix": "ELSA-2026-47757",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47757",
      "released": "2026-07-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-askpass",
      "release": "ol 9",
      "fixedVersion": "0:9.9p1-9.0.1.el9_8",
      "fix": "ELSA-2026-47756",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47756",
      "released": "2026-08-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-clients",
      "release": "RHEL 9",
      "fixedVersion": "0:9.9p1-9.el9_8",
      "fix": "RHSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-47756",
      "released": "2026-07-31T14:20:33Z"
    },
    {
      "platform": "linux",
      "product": "openssh-clients",
      "release": "almalinux 10",
      "fixedVersion": "9.9p1-25.el10_2.alma.1",
      "fix": "ALSA-2026:47757",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47757",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-clients",
      "release": "almalinux 9",
      "fixedVersion": "9.9p1-9.el9_8.alma.1",
      "fix": "ALSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47756",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-clients",
      "release": "ol 10",
      "fixedVersion": "0:9.9p1-25.0.1.el10_2",
      "fix": "ELSA-2026-47757",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47757",
      "released": "2026-07-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-clients",
      "release": "ol 9",
      "fixedVersion": "0:9.9p1-9.0.1.el9_8",
      "fix": "ELSA-2026-47756",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47756",
      "released": "2026-08-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-keycat",
      "release": "RHEL 9",
      "fixedVersion": "0:9.9p1-9.el9_8",
      "fix": "RHSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-47756",
      "released": "2026-07-31T14:20:33Z"
    },
    {
      "platform": "linux",
      "product": "openssh-keycat",
      "release": "almalinux 10",
      "fixedVersion": "9.9p1-25.el10_2.alma.1",
      "fix": "ALSA-2026:47757",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47757",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-keycat",
      "release": "almalinux 9",
      "fixedVersion": "9.9p1-9.el9_8.alma.1",
      "fix": "ALSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47756",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-keycat",
      "release": "ol 10",
      "fixedVersion": "0:9.9p1-25.0.1.el10_2",
      "fix": "ELSA-2026-47757",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47757",
      "released": "2026-07-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-keycat",
      "release": "ol 9",
      "fixedVersion": "0:9.9p1-9.0.1.el9_8",
      "fix": "ELSA-2026-47756",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47756",
      "released": "2026-08-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-keysign",
      "release": "almalinux 10",
      "fixedVersion": "9.9p1-25.el10_2.alma.1",
      "fix": "ALSA-2026:47757",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47757",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-keysign",
      "release": "ol 10",
      "fixedVersion": "0:9.9p1-25.0.1.el10_2",
      "fix": "ELSA-2026-47757",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47757",
      "released": "2026-07-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-server",
      "release": "RHEL 9",
      "fixedVersion": "0:9.9p1-9.el9_8",
      "fix": "RHSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-47756",
      "released": "2026-07-31T14:20:33Z"
    },
    {
      "platform": "linux",
      "product": "openssh-server",
      "release": "almalinux 10",
      "fixedVersion": "9.9p1-25.el10_2.alma.1",
      "fix": "ALSA-2026:47757",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47757",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-server",
      "release": "almalinux 9",
      "fixedVersion": "9.9p1-9.el9_8.alma.1",
      "fix": "ALSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47756",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-server",
      "release": "ol 10",
      "fixedVersion": "0:9.9p1-25.0.1.el10_2",
      "fix": "ELSA-2026-47757",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47757",
      "released": "2026-07-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssh-server",
      "release": "ol 9",
      "fixedVersion": "0:9.9p1-9.0.1.el9_8",
      "fix": "ELSA-2026-47756",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47756",
      "released": "2026-08-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "pam_ssh_agent_auth",
      "release": "RHEL 9",
      "fixedVersion": "0:0.10.4-7.9.el9_8",
      "fix": "RHSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-47756",
      "released": "2026-07-31T14:20:33Z"
    },
    {
      "platform": "linux",
      "product": "pam_ssh_agent_auth",
      "release": "almalinux 9",
      "fixedVersion": "0.10.4-7.9.el9_8.alma.1",
      "fix": "ALSA-2026:47756",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47756",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "pam_ssh_agent_auth",
      "release": "ol 9",
      "fixedVersion": "0:0.10.4-7.9.0.1.el9_8",
      "fix": "ELSA-2026-47756",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47756",
      "released": "2026-08-06T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}