{
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    "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"
      }
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        "category": "self",
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      }
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      "generator": {
        "date": "2026-10-26T07:42:07Z",
        "engine": {
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      "id": "CVE-2026-40930-ELS_OS-ORACLELINUX6ELS",
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      "revision_history": [
        {
          "date": "2026-06-04T16:16:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-10-26T07:42:07Z",
          "number": "2",
          "summary": "Official Publication"
        }
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      "status": "final",
      "version": "2"
    },
    "title": "Security update on CVE-2026-40930"
  },
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        },
        "product_reference": "libpng-static-2:1.2.49-2.el6_7.tuxcare.els1.i686",
        "relates_to_product_reference": "Oracle-Linux-6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libpng-devel-2:1.2.49-2.el6_7.tuxcare.els1.x86_64 as a component of Oracle Linux 6",
          "product_id": "Oracle-Linux-6:libpng-devel-2:1.2.49-2.el6_7.tuxcare.els1.x86_64"
        },
        "product_reference": "libpng-devel-2:1.2.49-2.el6_7.tuxcare.els1.x86_64",
        "relates_to_product_reference": "Oracle-Linux-6"
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        "category": "default_component_of",
        "full_product_name": {
          "name": "libpng-devel-2:1.2.49-2.el6_7.tuxcare.els1.i686 as a component of Oracle Linux 6",
          "product_id": "Oracle-Linux-6:libpng-devel-2:1.2.49-2.el6_7.tuxcare.els1.i686"
        },
        "product_reference": "libpng-devel-2:1.2.49-2.el6_7.tuxcare.els1.i686",
        "relates_to_product_reference": "Oracle-Linux-6"
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-40930",
      "cwe": {
        "id": "CWE-436",
        "name": "Interpretation Conflict"
      },
      "notes": [
        {
          "category": "description",
          "text": "LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to `png_process_data`. Commit faf06924688b62d7c1654b5ceddedbde66ffadb4 fixes the issue.",
          "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": [
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          "Oracle-Linux-6:libpng-2:1.2.49-2.el6_7.tuxcare.els1.x86_64",
          "Oracle-Linux-6:libpng-devel-2:1.2.49-2.el6_7.tuxcare.els1.i686",
          "Oracle-Linux-6:libpng-devel-2:1.2.49-2.el6_7.tuxcare.els1.x86_64",
          "Oracle-Linux-6:libpng-static-2:1.2.49-2.el6_7.tuxcare.els1.i686",
          "Oracle-Linux-6:libpng-static-2:1.2.49-2.el6_7.tuxcare.els1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-40930"
        },
        {
          "category": "external",
          "summary": "https://github.com/pnggroup/libpng/commit/faf06924688b62d7c1654b5ceddedbde66ffadb4",
          "url": "https://github.com/pnggroup/libpng/commit/faf06924688b62d7c1654b5ceddedbde66ffadb4"
        },
        {
          "category": "external",
          "summary": "https://github.com/pnggroup/libpng/security/advisories/GHSA-c4v6-gxrq-6g2x",
          "url": "https://github.com/pnggroup/libpng/security/advisories/GHSA-c4v6-gxrq-6g2x"
        },
        {
          "category": "external",
          "summary": "http://www.openwall.com/lists/oss-security/2026/05/15/21",
          "url": "http://www.openwall.com/lists/oss-security/2026/05/15/21"
        }
      ],
      "release_date": "2026-06-04T16:16:00Z",
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        },
        {
          "category": "impact",
          "date": "2026-10-22T03:03:31.408465Z",
          "details": "unknown",
          "product_ids": [
            "Oracle-Linux-6:libpng-2:1.2.49-2.el6_7.tuxcare.els1.i686",
            "Oracle-Linux-6:libpng-2:1.2.49-2.el6_7.tuxcare.els1.x86_64",
            "Oracle-Linux-6:libpng-devel-2:1.2.49-2.el6_7.tuxcare.els1.i686",
            "Oracle-Linux-6:libpng-devel-2:1.2.49-2.el6_7.tuxcare.els1.x86_64",
            "Oracle-Linux-6:libpng-static-2:1.2.49-2.el6_7.tuxcare.els1.i686",
            "Oracle-Linux-6:libpng-static-2:1.2.49-2.el6_7.tuxcare.els1.x86_64"
          ]
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      ]
    }
  ]
}