{
  "cveId": "CVE-2026-41643",
  "url": "https://patchblox.com/security/cve/CVE-2026-41643",
  "summary": "CVE-2026-41643 is fixed in 4 products on 1 platform, first by gobgpd 1.29-1ubuntu0.1\u002Besm2, released May 7, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "gobgp: GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language",
  "description": "GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.",
  "published": "2026-05-07T05:16:00Z",
  "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": 0.00542,
  "epssPercentile": 0.45842,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "gobgp",
      "release": "Debian 14",
      "fixedVersion": "4.3.0-1",
      "fix": "DEBIAN-CVE-2026-41643",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-41643",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "gobgpd",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.29-1ubuntu0.1\u002Besm2",
      "fix": "gobgpd 1.29-1ubuntu0.1\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-gobgpd-1.29-1ubuntu0.1-esm2",
      "released": "2026-05-07T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "gobgpd",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.12.0-1ubuntu0.1~esm3",
      "fix": "gobgpd 2.12.0-1ubuntu0.1~esm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-gobgpd-2.12.0-1ubuntu0.1-esm3",
      "released": "2026-05-07T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "gobgpd",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.25.0-3ubuntu0.1\u002Besm4",
      "fix": "gobgpd 2.25.0-3ubuntu0.1\u002Besm4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-gobgpd-2.25.0-3ubuntu0.1-esm4",
      "released": "2026-05-07T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "gobgpd",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "3.23.0-1ubuntu0.3\u002Besm4",
      "fix": "gobgpd 3.23.0-1ubuntu0.3\u002Besm4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-gobgpd-3.23.0-1ubuntu0.3-esm4",
      "released": "2026-05-07T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "gobgpd",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "3.36.0-2ubuntu0.1~esm1",
      "fix": "gobgpd 3.36.0-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-gobgpd-3.36.0-2ubuntu0.1-esm1",
      "released": "2026-05-07T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "golang-github-osrg-gobgp-dev",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.29-1ubuntu0.1\u002Besm2",
      "fix": "golang-github-osrg-gobgp-dev 1.29-1ubuntu0.1\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-golang-github-osrg-gobgp-dev-1.29-1ubuntu0.1-esm2",
      "released": "2026-05-07T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "golang-github-osrg-gobgp-dev",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.12.0-1ubuntu0.1~esm3",
      "fix": "golang-github-osrg-gobgp-dev 2.12.0-1ubuntu0.1~esm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-golang-github-osrg-gobgp-dev-2.12.0-1ubuntu0.1-esm3",
      "released": "2026-05-07T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "golang-github-osrg-gobgp-dev",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.25.0-3ubuntu0.1\u002Besm4",
      "fix": "golang-github-osrg-gobgp-dev 2.25.0-3ubuntu0.1\u002Besm4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-golang-github-osrg-gobgp-dev-2.25.0-3ubuntu0.1-esm4",
      "released": "2026-05-07T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "golang-github-osrg-gobgp-dev",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "3.23.0-1ubuntu0.3\u002Besm4",
      "fix": "golang-github-osrg-gobgp-dev 3.23.0-1ubuntu0.3\u002Besm4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-golang-github-osrg-gobgp-dev-3.23.0-1ubuntu0.3-esm4",
      "released": "2026-05-07T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "golang-github-osrg-gobgp-dev",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "3.36.0-2ubuntu0.1~esm1",
      "fix": "golang-github-osrg-gobgp-dev 3.36.0-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-golang-github-osrg-gobgp-dev-3.36.0-2ubuntu0.1-esm1",
      "released": "2026-05-07T05:16:00Z"
    },
    {
      "platform": "linux",
      "product": "govulncheck-vulndb",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.0.20260727T201416-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21551-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21551-1",
      "released": "2026-08-10T17:38:07Z"
    },
    {
      "platform": "linux",
      "product": "govulncheck-vulndb",
      "release": "sles 16.0",
      "fixedVersion": "0.0.20260727T201416-160000.1.1",
      "fix": "SUSE-SU-2026:23227-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23227-1",
      "released": "2026-08-10T17:34:15Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}