{
  "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: Improve determination of buffer size bufSize in\n   function doContent\n     - debian/patches/CVE-2026-25210.patch: fix integer overflow in\n       doContent tag buffer reallocation\n     - CVE-2026-25210",
        "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-2026:1774283473",
        "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1774283473"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/debian10els/advisories/2026/clsa-2026_1774283473.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-03-23T16:31:43Z",
      "generator": {
        "date": "2026-03-23T16:31:43Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CLSA-2026:1774283473",
      "initial_release_date": "2026-03-23T16:31:43Z",
      "revision_history": [
        {
          "date": "2026-03-23T16:31:43Z",
          "number": "1",
          "summary": "Initial version"
        }
      ],
      "status": "final",
      "version": "1"
    },
    "title": "Fix CVE(s): CVE-2026-25210"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Debian None",
                "product": {
                  "name": "Debian None",
                  "product_id": "Debian-10",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:debian:debian_linux:10:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Debian"
          }
        ],
        "category": "vendor",
        "name": "Software in the Public Interest, Inc."
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libexpat1-dev-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
                "product": {
                  "name": "libexpat1-dev-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
                  "product_id": "libexpat1-dev-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/libexpat1-dev@2.2.6-2%2Bdeb10u7%2Btuxcare.els3?arch=amd64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "expat-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
                "product": {
                  "name": "expat-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
                  "product_id": "expat-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/expat@2.2.6-2%2Bdeb10u7%2Btuxcare.els3?arch=amd64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libexpat1-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
                "product": {
                  "name": "libexpat1-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
                  "product_id": "libexpat1-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/libexpat1@2.2.6-2%2Bdeb10u7%2Btuxcare.els3?arch=amd64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "amd64"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libexpat1-dev-0:2.2.6-2+deb10u7+tuxcare.els3.amd64 as a component of Debian None",
          "product_id": "Debian-10:libexpat1-dev-0:2.2.6-2+deb10u7+tuxcare.els3.amd64"
        },
        "product_reference": "libexpat1-dev-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "expat-0:2.2.6-2+deb10u7+tuxcare.els3.amd64 as a component of Debian None",
          "product_id": "Debian-10:expat-0:2.2.6-2+deb10u7+tuxcare.els3.amd64"
        },
        "product_reference": "expat-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libexpat1-0:2.2.6-2+deb10u7+tuxcare.els3.amd64 as a component of Debian None",
          "product_id": "Debian-10:libexpat1-0:2.2.6-2+deb10u7+tuxcare.els3.amd64"
        },
        "product_reference": "libexpat1-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
        "relates_to_product_reference": "Debian-10"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-25210",
      "cwe": {
        "id": "CWE-190",
        "name": "Integer Overflow or Wraparound"
      },
      "notes": [
        {
          "category": "description",
          "text": "In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.",
          "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": {
        "fixed": [
          "Debian-10:expat-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
          "Debian-10:libexpat1-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
          "Debian-10:libexpat1-dev-0:2.2.6-2+deb10u7+tuxcare.els3.amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-25210"
        },
        {
          "category": "external",
          "summary": "https://github.com/libexpat/libexpat/pull/1075",
          "url": "https://github.com/libexpat/libexpat/pull/1075"
        },
        {
          "category": "external",
          "summary": "https://github.com/libexpat/libexpat/pull/1075/commits/9c2d990389e6abe2e44527eeaa8b39f16fe859c7",
          "url": "https://github.com/libexpat/libexpat/pull/1075/commits/9c2d990389e6abe2e44527eeaa8b39f16fe859c7"
        }
      ],
      "release_date": "2026-01-30T07:16:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-03-23T16:31:16.832066Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1774283473",
          "product_ids": [
            "Debian-10:expat-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
            "Debian-10:libexpat1-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
            "Debian-10:libexpat1-dev-0:2.2.6-2+deb10u7+tuxcare.els3.amd64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1774283473"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Debian-10:expat-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
            "Debian-10:libexpat1-0:2.2.6-2+deb10u7+tuxcare.els3.amd64",
            "Debian-10:libexpat1-dev-0:2.2.6-2+deb10u7+tuxcare.els3.amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    }
  ]
}