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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"
      },
      {
        "category": "details",
        "text": "* SECURITY UPDATE: CPython's SourcelessFileLoader read legacy .pyc files\n     with a plain _io.FileIO instead of io.open_code(), because\n     FileLoader.get_data() only routed SourceLoader and ExtensionFileLoader\n     subclasses through open_code(). A PEP 578 open_code hook installed to vet\n     code before it is executed was therefore not consulted when a sourceless\n     .pyc was imported, letting code loaded that way escape such validation\n     (CWE-668).\n     - debian/patches/CVE-2026-2297.patch: backport of cpython a51b1b51\n       (gh-145506). SourcelessFileLoader is added to the open_code() branch\n       of FileLoader.get_data(). As in the upstream 3.10 backport 876858c9,\n       the frozen Python/importlib_external.h is regenerated as well - the\n       interpreter executes the frozen blob, not the .py file, and the\n       Debian recipe does not run \"make regen-all\".\n     - CVE-2026-2297\n   * SECURITY UPDATE: xml.etree.ElementTree.Element.findall(), a fully\n     consumed Element.iterfind(), and Element.find() when the first match\n     sits near the end of the sibling list had O(n**2) time complexity for\n     XPath index predicates ([1], [last()], [last()-N]), because the\n     predicate re-ran parent.findall(tag) for every candidate sibling.\n     Parsing an attacker-supplied XML document with many same-tag siblings\n     could therefore consume excessive CPU time (CWE-407, inefficient\n     algorithmic complexity).\n     - debian/patches/CVE-2026-6879.patch: backport of cpython 2ffab083\n       (gh-152674). The (parent, tag) lookup is cached so each sibling group\n       is scanned once.\n     - CVE-2026-6879",
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        "summary": "https://cve.tuxcare.com/els-alt-python/releases/CLSA-2026:1787215855",
        "url": "https://cve.tuxcare.com/els-alt-python/releases/CLSA-2026:1787215855"
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      "id": "CLSA-2026:1787215855",
      "initial_release_date": "2026-08-20T08:50:58Z",
      "revision_history": [
        {
          "date": "2026-08-20T08:50:58Z",
          "number": "1",
          "summary": "Initial version"
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          "date": "2026-08-20T14:18:58Z",
          "number": "2",
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    "title": "Fix CVE(s): CVE-2026-4360, CVE-2026-6879"
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    {
      "cve": "CVE-2026-4360",
      "cwe": {
        "id": "CWE-281",
        "name": "Improper Preservation of Permissions"
      },
      "notes": [
        {
          "category": "description",
          "text": "In the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks. An affected system that extracts content from untrusted tar files could end up writing files with an unexpected uid/gid despite the user passing filter='data' to the extract() function.",
          "title": "Vulnerability description"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els-alt-python/cve/CVE-2026-4360"
        },
        {
          "category": "external",
          "summary": "https://github.com/python/cpython/commit/0367912be336348b30572f8029cec4a282782d92",
          "url": "https://github.com/python/cpython/commit/0367912be336348b30572f8029cec4a282782d92"
        },
        {
          "category": "external",
          "summary": "https://github.com/python/cpython/commit/5e0ef3f1afe892e4f64eb83368db57ac4c40cba0",
          "url": "https://github.com/python/cpython/commit/5e0ef3f1afe892e4f64eb83368db57ac4c40cba0"
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        {
          "category": "external",
          "summary": "https://github.com/python/cpython/commit/7b57e8d51446297b8c7c482d224bc5f1938e4301",
          "url": "https://github.com/python/cpython/commit/7b57e8d51446297b8c7c482d224bc5f1938e4301"
        },
        {
          "category": "external",
          "summary": "https://github.com/python/cpython/commit/7ccdbaba2c54250a70d7f25632152df7655a5e0a",
          "url": "https://github.com/python/cpython/commit/7ccdbaba2c54250a70d7f25632152df7655a5e0a"
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        {
          "category": "external",
          "summary": "https://github.com/python/cpython/commit/cf23b9153181062150d061468b6d24af33fe214f",
          "url": "https://github.com/python/cpython/commit/cf23b9153181062150d061468b6d24af33fe214f"
        },
        {
          "category": "external",
          "summary": "https://github.com/python/cpython/commit/d2b2f5eacab4dd48446b63340613b05dcbbf0b44",
          "url": "https://github.com/python/cpython/commit/d2b2f5eacab4dd48446b63340613b05dcbbf0b44"
        },
        {
          "category": "external",
          "summary": "https://github.com/python/cpython/commit/eee3ddf0ca10283cc7fea724aae9cd8665f8d15e",
          "url": "https://github.com/python/cpython/commit/eee3ddf0ca10283cc7fea724aae9cd8665f8d15e"
        },
        {
          "category": "external",
          "summary": "https://github.com/python/cpython/issues/151987",
          "url": "https://github.com/python/cpython/issues/151987"
        },
        {
          "category": "external",
          "summary": "https://github.com/python/cpython/pull/151988",
          "url": "https://github.com/python/cpython/pull/151988"
        },
        {
          "category": "external",
          "summary": "https://mail.python.org/archives/list/security-announce@python.org/thread/TWZW2PC2AZOV6FENIHFSRC63OM7MBGSB/",
          "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/TWZW2PC2AZOV6FENIHFSRC63OM7MBGSB/"
        }
      ],
      "release_date": "2026-06-30T15:16:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-20T08:50:58.007955Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els-alt-python/releases/CLSA-2026:1787215855",
          "product_ids": [
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            "Ubuntu-24:alt-python39-tkinter-0:3.9.23-27.amd64"
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          "url": "https://cve.tuxcare.com/els-alt-python/releases/CLSA-2026:1787215855"
        },
        {
          "category": "none_available",
          "date": "2026-06-30T15:16:00Z",
          "details": "Affected",
          "product_ids": [
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
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}