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    "aggregate_severity": {
      "text": "Important"
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    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
      "tlp": {
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        "url": "https://www.first.org/tlp/"
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      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
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      {
        "category": "details",
        "text": "* SECURITY UPDATE: denial of service when seeking a tar stream\n     - debian/patches/CVE-2026-11972.patch: break out of the block-read loop\n       in _Stream.seek() in Lib/tarfile.py once read() returns no data, so a\n       member header declaring a huge size no longer drives an unbounded read\n       loop past end of stream\n     - CVE-2026-11972",
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        "date": "2026-09-18T08:15:31Z",
        "engine": {
          "name": "pyCSAF"
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      "id": "CLSA-2026:1789719259",
      "initial_release_date": "2026-09-18T08:15:31Z",
      "revision_history": [
        {
          "date": "2026-09-18T08:15:31Z",
          "number": "1",
          "summary": "Initial version"
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    "title": "Fix CVE(s): CVE-2026-11972"
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