{
  "document": {
    "category": "csaf_vex",
    "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"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
    },
    "references": [
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/almalinux9.2esu/vex/2026/cve-2026-41401-els_os-almalinux9_2esu.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-08-14T14:58:39Z",
      "generator": {
        "date": "2026-08-14T14:58:39Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CVE-2026-41401-ELS_OS-ALMALINUX9.2ESU",
      "initial_release_date": "2026-05-26T15:16:00Z",
      "revision_history": [
        {
          "date": "2026-05-26T15:16:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-08-14T14:58:39Z",
          "number": "2",
          "summary": "Official Publication"
        }
      ],
      "status": "final",
      "version": "2"
    },
    "title": "Security update on CVE-2026-41401"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "AlmaLinux 9.2",
                "product": {
                  "name": "AlmaLinux 9.2",
                  "product_id": "AlmaLinux-9.2",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:almalinux:almalinux:9.2:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "AlmaLinux"
          }
        ],
        "category": "vendor",
        "name": "AlmaLinux OS Foundation"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libyang-0:2.0.7-2.el9.tuxcare.els1.x86_64",
                "product": {
                  "name": "libyang-0:2.0.7-2.el9.tuxcare.els1.x86_64",
                  "product_id": "libyang-0:2.0.7-2.el9.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/libyang@2.0.7-2.el9.tuxcare.els1?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libyang-devel-doc-0:2.0.7-2.el9.tuxcare.els1.x86_64",
                "product": {
                  "name": "libyang-devel-doc-0:2.0.7-2.el9.tuxcare.els1.x86_64",
                  "product_id": "libyang-devel-doc-0:2.0.7-2.el9.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/libyang-devel-doc@2.0.7-2.el9.tuxcare.els1?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libyang-devel-0:2.0.7-2.el9.tuxcare.els1.x86_64",
                "product": {
                  "name": "libyang-devel-0:2.0.7-2.el9.tuxcare.els1.x86_64",
                  "product_id": "libyang-devel-0:2.0.7-2.el9.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/libyang-devel@2.0.7-2.el9.tuxcare.els1?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libyang-0:2.0.7-2.el9.tuxcare.els1.i686",
                "product": {
                  "name": "libyang-0:2.0.7-2.el9.tuxcare.els1.i686",
                  "product_id": "libyang-0:2.0.7-2.el9.tuxcare.els1.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/libyang@2.0.7-2.el9.tuxcare.els1?arch=i686"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libyang-devel-0:2.0.7-2.el9.tuxcare.els1.i686",
                "product": {
                  "name": "libyang-devel-0:2.0.7-2.el9.tuxcare.els1.i686",
                  "product_id": "libyang-devel-0:2.0.7-2.el9.tuxcare.els1.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/libyang-devel@2.0.7-2.el9.tuxcare.els1?arch=i686"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "i686"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libyang-0:2.0.7-2.el9.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2",
          "product_id": "AlmaLinux-9.2:libyang-0:2.0.7-2.el9.tuxcare.els1.x86_64"
        },
        "product_reference": "libyang-0:2.0.7-2.el9.tuxcare.els1.x86_64",
        "relates_to_product_reference": "AlmaLinux-9.2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libyang-0:2.0.7-2.el9.tuxcare.els1.i686 as a component of AlmaLinux 9.2",
          "product_id": "AlmaLinux-9.2:libyang-0:2.0.7-2.el9.tuxcare.els1.i686"
        },
        "product_reference": "libyang-0:2.0.7-2.el9.tuxcare.els1.i686",
        "relates_to_product_reference": "AlmaLinux-9.2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libyang-devel-doc-0:2.0.7-2.el9.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2",
          "product_id": "AlmaLinux-9.2:libyang-devel-doc-0:2.0.7-2.el9.tuxcare.els1.x86_64"
        },
        "product_reference": "libyang-devel-doc-0:2.0.7-2.el9.tuxcare.els1.x86_64",
        "relates_to_product_reference": "AlmaLinux-9.2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libyang-devel-0:2.0.7-2.el9.tuxcare.els1.i686 as a component of AlmaLinux 9.2",
          "product_id": "AlmaLinux-9.2:libyang-devel-0:2.0.7-2.el9.tuxcare.els1.i686"
        },
        "product_reference": "libyang-devel-0:2.0.7-2.el9.tuxcare.els1.i686",
        "relates_to_product_reference": "AlmaLinux-9.2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libyang-devel-0:2.0.7-2.el9.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2",
          "product_id": "AlmaLinux-9.2:libyang-devel-0:2.0.7-2.el9.tuxcare.els1.x86_64"
        },
        "product_reference": "libyang-devel-0:2.0.7-2.el9.tuxcare.els1.x86_64",
        "relates_to_product_reference": "AlmaLinux-9.2"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-41401",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "notes": [
        {
          "category": "description",
          "text": "libyang before 5.2.6 contains a heap use-after-free write vulnerability in lyd_parser_set_data_flags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata attributes to applications parsing untrusted XML data, causing process crashes or potential code execution.",
          "title": "Vulnerability description"
        },
        {
          "category": "other",
          "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.",
          "title": "Statement"
        }
      ],
      "product_status": {
        "known_not_affected": [
          "AlmaLinux-9.2:libyang-0:2.0.7-2.el9.tuxcare.els1.i686",
          "AlmaLinux-9.2:libyang-0:2.0.7-2.el9.tuxcare.els1.x86_64",
          "AlmaLinux-9.2:libyang-devel-0:2.0.7-2.el9.tuxcare.els1.i686",
          "AlmaLinux-9.2:libyang-devel-0:2.0.7-2.el9.tuxcare.els1.x86_64",
          "AlmaLinux-9.2:libyang-devel-doc-0:2.0.7-2.el9.tuxcare.els1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-41401"
        },
        {
          "category": "external",
          "summary": "https://github.com/CESNET/libyang/commit/6b5ed47ee674fbe86b31bbebc4ff26889aeff38c",
          "url": "https://github.com/CESNET/libyang/commit/6b5ed47ee674fbe86b31bbebc4ff26889aeff38c"
        },
        {
          "category": "external",
          "summary": "https://github.com/CESNET/libyang/security/advisories/GHSA-9f49-8x56-jmjc",
          "url": "https://github.com/CESNET/libyang/security/advisories/GHSA-9f49-8x56-jmjc"
        },
        {
          "category": "external",
          "summary": "https://red.anthropic.com/2026/cvd/findings/ANT-2026-TZQ1KH7E",
          "url": "https://red.anthropic.com/2026/cvd/findings/ANT-2026-TZQ1KH7E"
        },
        {
          "category": "external",
          "summary": "https://www.vulncheck.com/advisories/libyang-heap-use-after-free-write-in-xml-metadata-parsing",
          "url": "https://www.vulncheck.com/advisories/libyang-heap-use-after-free-write-in-xml-metadata-parsing"
        }
      ],
      "release_date": "2026-05-26T15:16:00Z",
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        },
        {
          "category": "impact",
          "date": "2026-08-01T12:42:33.141671Z",
          "details": "unknown",
          "product_ids": [
            "AlmaLinux-9.2:libyang-0:2.0.7-2.el9.tuxcare.els1.i686",
            "AlmaLinux-9.2:libyang-0:2.0.7-2.el9.tuxcare.els1.x86_64",
            "AlmaLinux-9.2:libyang-devel-0:2.0.7-2.el9.tuxcare.els1.i686",
            "AlmaLinux-9.2:libyang-devel-0:2.0.7-2.el9.tuxcare.els1.x86_64",
            "AlmaLinux-9.2:libyang-devel-doc-0:2.0.7-2.el9.tuxcare.els1.x86_64"
          ]
        }
      ]
    }
  ]
}