{
  "cveId": "CVE-2026-40890",
  "url": "https://patchblox.com/security/cve/CVE-2026-40890",
  "summary": "CVE-2026-40890 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-40890, released April 21, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "github.com/gomarkdown/markdown: Out-of-bounds Read in SmartypantsRenderer",
  "description": "The package \u0060github.com/gomarkdown/markdown\u0060 is a Go library for parsing Markdown text and rendering as HTML. Processing a malformed input containing a \u003C character that is not followed by a \u003E character anywhere in the remaining text with a SmartypantsRenderer will lead to Out of Bounds read or a panic. This vulnerability is fixed with commit 759bbc3e32073c3bc4e25969c132fc520eda2778.",
  "published": "2026-04-21T20:17:02Z",
  "severity": "Important",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cwe": "Out-of-bounds Read",
  "epss": 0.00346,
  "epssPercentile": 0.2832,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40890",
  "fixes": [
    {
      "platform": "linux",
      "product": "golang-github-gomarkdown-markdown",
      "release": "Debian 14",
      "fixedVersion": "0.0~git20260725.8435af3-1",
      "fix": "DEBIAN-CVE-2026-40890",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-40890",
      "released": "2026-04-21T20:17:02Z"
    },
    {
      "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": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}