{
  "cveId": "CVE-2026-31965",
  "url": "https://patchblox.com/security/cve/CVE-2026-31965",
  "summary": "CVE-2026-31965 is fixed in 12 products on 1 platform, first by DEBIAN-CVE-2026-31965, released March 18, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "htslib: HTSlib is a library for reading and writing bioinformatics file formats",
  "description": "HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data. In the \u0060cram_decode_slice()\u0060 function called while reading CRAM records, validation of the reference id field occurred too late, allowing two out of bounds reads to occur before the invalid data was detected. The bug does allow two values to be leaked to the caller, however as the function reports an error it may be difficult to exploit them. It is also possible that the program will crash due to trying to access invalid memory. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. There is no workaround for this issue.",
  "published": "2026-03-18T19:16:04Z",
  "severity": "high",
  "cvss": 8.2,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
  "epss": 0.00396,
  "epssPercentile": 0.34082,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bcftools",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    },
    {
      "platform": "linux",
      "product": "bcftools-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    },
    {
      "platform": "linux",
      "product": "bcftools-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    },
    {
      "platform": "linux",
      "product": "htslib",
      "release": "Debian 14",
      "fixedVersion": "1.24-2",
      "fix": "DEBIAN-CVE-2026-31965",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-31965",
      "released": "2026-03-18T19:16:04Z"
    },
    {
      "platform": "linux",
      "product": "htslib",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    },
    {
      "platform": "linux",
      "product": "htslib-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    },
    {
      "platform": "linux",
      "product": "htslib-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    },
    {
      "platform": "linux",
      "product": "htslib-devel",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    },
    {
      "platform": "linux",
      "product": "htslib-tools",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    },
    {
      "platform": "linux",
      "product": "htslib-tools-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    },
    {
      "platform": "linux",
      "product": "samtools",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    },
    {
      "platform": "linux",
      "product": "samtools-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    },
    {
      "platform": "linux",
      "product": "samtools-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "1.23.1-1.fc43",
      "fix": "FEDORA-2026-3B06345BF2",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-3b06345bf2",
      "released": "2026-03-19T16:16:16Z"
    }
  ],
  "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"
  }
}