{
  "document": {
    "aggregate_severity": {
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "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: TZ environment variable allows bypass of NOTBEFORE/NOTAFTER time-based authorization\n     - debian/patches/CVE-2026-96512.patch: TZ environment variable allows bypass of NOTBEFORE/NOTAFTER time-based authorization\n     - CVE-2026-96512",
        "title": "Details"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791569890",
        "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791569890"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/debian11els/advisories/2026/clsa-2026_1791569890.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-10-09T18:19:01Z",
      "generator": {
        "date": "2026-10-09T18:19:01Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CLSA-2026:1791569890",
      "initial_release_date": "2026-10-09T18:19:01Z",
      "revision_history": [
        {
          "date": "2026-10-09T18:19:01Z",
          "number": "1",
          "summary": "Initial version"
        }
      ],
      "status": "final",
      "version": "1"
    },
    "title": "Fix CVE(s): CVE-2026-96512"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Debian 11",
                "product": {
                  "name": "Debian 11",
                  "product_id": "Debian-11",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:debian:debian_linux:11:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Debian"
          }
        ],
        "category": "vendor",
        "name": "Software in the Public Interest, Inc."
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel",
                "product": {
                  "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel",
                  "product_id": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els2?arch=armel"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel",
                "product": {
                  "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel",
                  "product_id": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo-ldap@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els2?arch=armel"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel",
                "product": {
                  "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel",
                  "product_id": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo-ldap@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els1?arch=armel"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel",
                "product": {
                  "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel",
                  "product_id": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els1?arch=armel"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "armel"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
                "product": {
                  "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
                  "product_id": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els2?arch=amd64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
                "product": {
                  "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
                  "product_id": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo-ldap@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els2?arch=amd64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
                "product": {
                  "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
                  "product_id": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo-ldap@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els1?arch=amd64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
                "product": {
                  "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
                  "product_id": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els1?arch=amd64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "amd64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
                "product": {
                  "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
                  "product_id": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els2?arch=arm64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
                "product": {
                  "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
                  "product_id": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo-ldap@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els2?arch=arm64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
                "product": {
                  "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
                  "product_id": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo-ldap@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els1?arch=arm64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
                "product": {
                  "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
                  "product_id": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/sudo@1.9.5p2-3%2Bdeb11u4%2Btuxcare.els1?arch=arm64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "arm64"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel as a component of Debian 11",
          "product_id": "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel"
        },
        "product_reference": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64 as a component of Debian 11",
          "product_id": "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64"
        },
        "product_reference": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64 as a component of Debian 11",
          "product_id": "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64"
        },
        "product_reference": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64 as a component of Debian 11",
          "product_id": "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64"
        },
        "product_reference": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64 as a component of Debian 11",
          "product_id": "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64"
        },
        "product_reference": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel as a component of Debian 11",
          "product_id": "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel"
        },
        "product_reference": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel as a component of Debian 11",
          "product_id": "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel"
        },
        "product_reference": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64 as a component of Debian 11",
          "product_id": "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64"
        },
        "product_reference": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64 as a component of Debian 11",
          "product_id": "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64"
        },
        "product_reference": "sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64 as a component of Debian 11",
          "product_id": "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64"
        },
        "product_reference": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel as a component of Debian 11",
          "product_id": "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel"
        },
        "product_reference": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64 as a component of Debian 11",
          "product_id": "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64"
        },
        "product_reference": "sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
        "relates_to_product_reference": "Debian-11"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-96512",
      "cwe": {
        "id": "CWE-863",
        "name": "Incorrect Authorization"
      },
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing 'Z' timezone indicator, the time evaluation relies on the TZ environment variable inherited from the calling user. Because sudo is a setuid-root program, an unprivileged local user can set TZ to an extreme timezone offset to shift the authorization window by up to approximately 25 hours, causing expired rules to be treated as valid. This allows the user to execute commands outside the intended time window. Authentication is not bypassed; only the time-based authorization check is affected.",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
        "fixed": [
          "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
          "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
          "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel",
          "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
          "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
          "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel"
        ],
        "known_affected": [
          "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
          "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
          "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel",
          "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
          "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
          "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-96512"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/errata/RHSA-2026:71609",
          "url": "https://access.redhat.com/errata/RHSA-2026:71609"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/errata/RHSA-2026:75571",
          "url": "https://access.redhat.com/errata/RHSA-2026:75571"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/errata/RHSA-2026:75579",
          "url": "https://access.redhat.com/errata/RHSA-2026:75579"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/errata/RHSA-2026:75580",
          "url": "https://access.redhat.com/errata/RHSA-2026:75580"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/security/cve/CVE-2026-96512",
          "url": "https://access.redhat.com/security/cve/CVE-2026-96512"
        },
        {
          "category": "external",
          "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=2539327",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2539327"
        },
        {
          "category": "external",
          "summary": "https://github.com/sudo-project/sudo/commit/1820a349687522f51023d1ae5925125f59679a8c",
          "url": "https://github.com/sudo-project/sudo/commit/1820a349687522f51023d1ae5925125f59679a8c"
        },
        {
          "category": "external",
          "summary": "http://www.openwall.com/lists/oss-security/2026/09/24/4",
          "url": "http://www.openwall.com/lists/oss-security/2026/09/24/4"
        }
      ],
      "release_date": "2026-09-23T14:17:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-09T18:18:12.608696Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1791569890",
          "product_ids": [
            "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
            "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
            "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel",
            "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.amd64",
            "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.arm64",
            "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els2.armel"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791569890"
        },
        {
          "category": "none_available",
          "date": "2026-09-23T14:17:00Z",
          "details": "Affected",
          "product_ids": [
            "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
            "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
            "Debian-11:sudo-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel",
            "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.amd64",
            "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.arm64",
            "Debian-11:sudo-ldap-0:1.9.5p2-3+deb11u4+tuxcare.els1.armel"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    }
  ]
}