{
  "cveId": "CVE-2025-62518",
  "url": "https://patchblox.com/security/cve/CVE-2025-62518",
  "summary": "CVE-2025-62518 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2025-62518, released October 21, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "astral-tokio-tar Vulnerable to PAX Header Desynchronization",
  "description": "astral-tokio-tar is a tar archive reading/writing library for async Rust. Versions of astral-tokio-tar prior to 0.5.6 contain a boundary parsing vulnerability that allows attackers to smuggle additional archive entries by exploiting inconsistent PAX/ustar header handling. When processing archives with PAX-extended headers containing size overrides, the parser incorrectly advances stream position based on ustar header size (often zero) instead of the PAX-specified size, causing it to interpret file content as legitimate tar headers. This issue has been patched in version 0.5.6. There are no workarounds.",
  "published": "2025-10-21T17:15:40Z",
  "severity": "Important",
  "cvss": 8.1,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
  "cwe": "Access of Resource Using Incompatible Type (\u0026#39;Type Confusion\u0026#39;)",
  "epss": 0.00703,
  "epssPercentile": 0.5353,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62518",
  "fixes": [
    {
      "platform": "linux",
      "product": "python-uv",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.7.18-160000.3.1",
      "fix": "OPENSUSE-SU-2026:20026-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-20026-1",
      "released": "2026-01-13T12:48:04Z"
    },
    {
      "platform": "linux",
      "product": "python-uv",
      "release": "sles 16.0",
      "fixedVersion": "0.7.18-160000.3.1",
      "fix": "SUSE-SU-2026:20077-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-20077-1",
      "released": "2026-01-13T12:49:17Z"
    },
    {
      "platform": "linux",
      "product": "rust-astral-tokio-tar",
      "release": "Debian 14",
      "fixedVersion": "0.5.6-1",
      "fix": "DEBIAN-CVE-2025-62518",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-62518",
      "released": "2025-10-21T17:15:40Z"
    }
  ],
  "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"
  }
}