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    "aggregate_severity": {
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
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      "text": "TuxCare License Agreement",
      "tlp": {
        "label": "WHITE",
        "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"
      },
      {
        "category": "details",
        "text": "fix CVE-2026-61915: double-free in the CalDAV VPATCH BYPARAM selector\n- fix CVE-2026-61909: calendar/addressbook-multiget returned resources the user has no ACL on\n- fix CVE-2026-61911: Sieve mailboxexists/metadata probed other users' mailboxes without a lookup-rights check\n- do not free VPATCH parameters already removed by reference: libical frees them in icalproperty_remove_parameter_by_ref(), so the following icalparameter_free() aborted the CalDAV worker on any VPATCH carrying a PATCH-ACTION parameter, before the CVE-2026-61915 code path could be reached\n- add the upstream cunit regression test for CVE-2026-61915\n- run the cunit suite in %check even when cassandane is disabled, so the regression test above actually executes",
        "title": "Details"
      }
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      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
    },
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        "category": "self",
        "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1790173408",
        "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1790173408"
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        "url": "https://security.tuxcare.com/csaf/v2/els_os/tuxcare9.6esu/advisories/2026/clsa-2026_1790173408.json"
      }
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        "date": "2026-09-23T14:24:18Z",
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          "name": "pyCSAF"
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        {
          "date": "2026-09-23T14:24:18Z",
          "number": "1",
          "summary": "Initial version"
        }
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      "status": "final",
      "version": "1"
    },
    "title": "cyrus-imapd: Fix of 3 CVEs"
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          "category": "vendor_fix",
          "date": "2026-09-23T14:23:29.772061Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1790173408",
          "product_ids": [
            "AlmaLinux-9.6:cyrus-imapd-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:cyrus-imapd-devel-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:cyrus-imapd-doc-extra-0:3.4.8-2.el9_6.tuxcare.els1.noarch",
            "AlmaLinux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.i686",
            "AlmaLinux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:cyrus-imapd-utils-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:cyrus-imapd-virusscan-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:perl-Cyrus-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-devel-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-doc-extra-0:3.4.8-2.el9_6.tuxcare.els1.noarch",
            "Rocky Linux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.i686",
            "Rocky Linux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-utils-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-virusscan-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:perl-Cyrus-0:3.4.8-2.el9_6.tuxcare.els1.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1790173408"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    },
    {
      "cve": "CVE-2026-61915",
      "cwe": {
        "id": "CWE-415",
        "name": "Double Free"
      },
      "notes": [
        {
          "category": "description",
          "text": "An issue was discovered in Cyrus IMAP before 3.12.4. There is a VPATCH BYPARAM double-free. An authenticated calendar user could crash a Cyrus CalDAV worker with a PATCH containing PATCH-ACTION=\"BYPARAM@...\" against a resource with two or more properties of the matched kind. The memory holding the selector would be freed once on each iteration over the properties.",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
        "fixed": [
          "AlmaLinux-9.6:cyrus-imapd-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "AlmaLinux-9.6:cyrus-imapd-devel-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "AlmaLinux-9.6:cyrus-imapd-doc-extra-0:3.4.8-2.el9_6.tuxcare.els1.noarch",
          "AlmaLinux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.i686",
          "AlmaLinux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "AlmaLinux-9.6:cyrus-imapd-utils-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "AlmaLinux-9.6:cyrus-imapd-virusscan-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "AlmaLinux-9.6:perl-Cyrus-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:cyrus-imapd-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:cyrus-imapd-devel-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:cyrus-imapd-doc-extra-0:3.4.8-2.el9_6.tuxcare.els1.noarch",
          "Rocky Linux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.i686",
          "Rocky Linux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:cyrus-imapd-utils-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:cyrus-imapd-virusscan-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:perl-Cyrus-0:3.4.8-2.el9_6.tuxcare.els1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-61915"
        },
        {
          "category": "external",
          "summary": "https://cyrusimap.org",
          "url": "https://cyrusimap.org/"
        },
        {
          "category": "external",
          "summary": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.10/x/3.10.4.html",
          "url": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.10/x/3.10.4.html"
        },
        {
          "category": "external",
          "summary": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.4.html",
          "url": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.4.html"
        },
        {
          "category": "external",
          "summary": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.8/x/3.8.8.html",
          "url": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.8/x/3.8.8.html"
        }
      ],
      "release_date": "2026-09-09T20:18:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-23T14:23:29.772061Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1790173408",
          "product_ids": [
            "AlmaLinux-9.6:cyrus-imapd-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:cyrus-imapd-devel-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:cyrus-imapd-doc-extra-0:3.4.8-2.el9_6.tuxcare.els1.noarch",
            "AlmaLinux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.i686",
            "AlmaLinux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:cyrus-imapd-utils-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:cyrus-imapd-virusscan-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:perl-Cyrus-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-devel-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-doc-extra-0:3.4.8-2.el9_6.tuxcare.els1.noarch",
            "Rocky Linux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.i686",
            "Rocky Linux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-utils-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-virusscan-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:perl-Cyrus-0:3.4.8-2.el9_6.tuxcare.els1.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1790173408"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    },
    {
      "cve": "CVE-2026-61909",
      "cwe": {
        "id": "CWE-420",
        "name": "Unprotected Alternate Channel"
      },
      "notes": [
        {
          "category": "description",
          "text": "An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. An authenticated DAV user with some shared access to another user's calendar or address book could read even unshared events or contacts by including the target hrefs in a calendar-multiget or addressbook-multiget REPORT.",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
        "fixed": [
          "AlmaLinux-9.6:cyrus-imapd-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "AlmaLinux-9.6:cyrus-imapd-devel-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "AlmaLinux-9.6:cyrus-imapd-doc-extra-0:3.4.8-2.el9_6.tuxcare.els1.noarch",
          "AlmaLinux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.i686",
          "AlmaLinux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
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          "AlmaLinux-9.6:cyrus-imapd-virusscan-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "AlmaLinux-9.6:perl-Cyrus-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:cyrus-imapd-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:cyrus-imapd-devel-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:cyrus-imapd-doc-extra-0:3.4.8-2.el9_6.tuxcare.els1.noarch",
          "Rocky Linux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.i686",
          "Rocky Linux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:cyrus-imapd-utils-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:cyrus-imapd-virusscan-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
          "Rocky Linux-9.6:perl-Cyrus-0:3.4.8-2.el9_6.tuxcare.els1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-61909"
        },
        {
          "category": "external",
          "summary": "https://cyrusimap.org",
          "url": "https://cyrusimap.org/"
        },
        {
          "category": "external",
          "summary": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.10/x/3.10.4.html",
          "url": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.10/x/3.10.4.html"
        },
        {
          "category": "external",
          "summary": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.4.html",
          "url": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.4.html"
        },
        {
          "category": "external",
          "summary": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.8/x/3.8.8.html",
          "url": "https://www.cyrusimap.org/3.12/imap/download/release-notes/3.8/x/3.8.8.html"
        }
      ],
      "release_date": "2026-09-09T20:18:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-23T14:23:29.772061Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1790173408",
          "product_ids": [
            "AlmaLinux-9.6:cyrus-imapd-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:cyrus-imapd-devel-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:cyrus-imapd-doc-extra-0:3.4.8-2.el9_6.tuxcare.els1.noarch",
            "AlmaLinux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.i686",
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            "AlmaLinux-9.6:cyrus-imapd-virusscan-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "AlmaLinux-9.6:perl-Cyrus-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
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            "Rocky Linux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.i686",
            "Rocky Linux-9.6:cyrus-imapd-libs-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-utils-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:cyrus-imapd-virusscan-0:3.4.8-2.el9_6.tuxcare.els1.x86_64",
            "Rocky Linux-9.6:perl-Cyrus-0:3.4.8-2.el9_6.tuxcare.els1.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1790173408"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ]
    }
  ]
}