RHSA-2026:80856

Vulnerability from csaf_redhat - Published: 2026-10-12 12:03 - Updated: 2026-10-19 11:59
Summary
Red Hat Security Advisory: Red Hat AI Base Images 3.5.3 (CUDA 13.0)
Severity
Important
Notes
Topic: Red Hat AI Base Images 3.5.3 (CUDA 13.0) is now available.
Details: Red Hat® AI Base Images
Terms of Use: 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 Red Hat Inc. and provide a link to the original.
CVE-2026-11940

A flaw was found in the `tarfile.extractall()` function within Python. A remote attacker could exploit this vulnerability by providing a specially crafted archive. This archive could bypass security filters by using a hardlink that references a symlink, allowing the symlink to be recreated outside the intended destination directory. This could lead to out-of-destination file reads or writes, potentially resulting in information disclosure or arbitrary file modification.

7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:83ca23b352c146804ad98fe695d4eb5223771be5cb80b8271c59c0991a5e9d61_arm64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:f44a7e3561859e9341e5bdf2454d651f08a4111fb6adfc3d1e8e28e47418ac3b_amd64 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-15308

A flaw was found in Python. Its incremental HTML parser can be exploited by a remote attacker. By sending specially crafted, uncontrolled data with repeated, incomplete markup declarations, the attacker can cause the system to consume excessive central processing unit (CPU) resources. This leads to a denial of service, making the affected system unresponsive.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Affected products
Fixed 2 products, the same list as for CVE-2026-11940
Threats
Impact Important
CVE-2026-58049

A flaw was found in FFmpeg's RASC video decoder. A remote attacker could exploit this by providing a crafted media stream using the RASC FourCC (Four Character Code), which is then decoded by libavcodec. This vulnerability triggers a bitstream-controlled out-of-bounds heap write and an adjacent out-of-bounds read, leading to memory corruption. This can result in a denial of service or potentially arbitrary code execution.

7.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
CWE-787 - Out-of-bounds Write
Affected products
Fixed 2 products, the same list as for CVE-2026-11940
Threats
Impact Important
CVE-2026-64834

A flaw was found in FFmpeg. A remote attacker can exploit an infinite loop vulnerability in the RTP/ASF demuxer by sending a specially crafted stream. This vulnerability occurs because the rtp_asf_fix_header function does not properly validate the size of data chunks, preventing the processing loop from advancing. Successful exploitation leads to CPU exhaustion, causing a Denial of Service (DoS) for legitimate users.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Affected products
Fixed 2 products, the same list as for CVE-2026-11940
Threats
Impact Important
CVE-2026-66036

A flaw was found in FFmpeg. A remote attacker can exploit a heap out-of-bounds write vulnerability within the `vf_hqdn3d` filter by providing a specially crafted video file. When filtergraph reinitialization is disabled, the filter allocates undersized memory buffers for video frames. Subsequent larger frames can cause the application to write beyond these allocated boundaries, leading to heap memory corruption. This can result in arbitrary code execution or a denial of service.

8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-787 - Out-of-bounds Write
Affected products
Fixed 2 products, the same list as for CVE-2026-11940
Threats
Impact Important
CVE-2026-66039

A flaw was found in FFmpeg. A remote attacker could exploit a signed integer overflow vulnerability in the MACE6 audio decoder by providing a specially crafted CAF (Core Audio Format) file. This malicious file manipulates the bytes_per_packet value, leading to an undersized memory allocation and a heap out-of-bounds write. This vulnerability could allow an attacker to execute arbitrary code on the affected system.

8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-787 - Out-of-bounds Write
Affected products
Fixed 2 products, the same list as for CVE-2026-11940
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:80856 self
https://access.redhat.com/security/cve/CVE-2026-11940 external
https://access.redhat.com/security/cve/CVE-2026-15308 external
https://access.redhat.com/security/cve/CVE-2026-58049 external
https://access.redhat.com/security/cve/CVE-2026-64834 external
https://access.redhat.com/security/cve/CVE-2026-66036 external
https://access.redhat.com/security/cve/CVE-2026-66039 external
https://access.redhat.com/security/updates/classi… external
https://www.redhat.com/en/products/ai external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-11940 self
https://bugzilla.redhat.com/show_bug.cgi?id=2491848 external
https://www.cve.org/CVERecord?id=CVE-2026-11940 external
https://nvd.nist.gov/vuln/detail/CVE-2026-11940 external
https://github.com/python/cpython/issues/151558 external
https://github.com/python/cpython/pull/151559 external
https://mail.python.org/archives/list/security-an… external
https://access.redhat.com/security/cve/CVE-2026-15308 self
https://bugzilla.redhat.com/show_bug.cgi?id=2498608 external
https://www.cve.org/CVERecord?id=CVE-2026-15308 external
https://nvd.nist.gov/vuln/detail/CVE-2026-15308 external
https://github.com/python/cpython/commit/07efb081… external
https://github.com/python/cpython/commit/7933f4bf… external
https://github.com/python/cpython/commit/bcf98ddb… external
https://github.com/python/cpython/commit/e9f92ac0… external
https://github.com/python/cpython/issues/153030 external
https://github.com/python/cpython/pull/153031 external
https://mail.python.org/archives/list/security-an… external
https://access.redhat.com/security/cve/CVE-2026-58049 self
https://bugzilla.redhat.com/show_bug.cgi?id=2493952 external
https://www.cve.org/CVERecord?id=CVE-2026-58049 external
https://nvd.nist.gov/vuln/detail/CVE-2026-58049 external
https://github.com/FFmpeg/FFmpeg/blob/master/liba… external
https://github.com/bikini/exploitarium/tree/main/… external
https://www.vulncheck.com/advisories/ffmpeg-out-o… external
https://access.redhat.com/security/cve/CVE-2026-64834 self
https://bugzilla.redhat.com/show_bug.cgi?id=2506191 external
https://www.cve.org/CVERecord?id=CVE-2026-64834 external
https://nvd.nist.gov/vuln/detail/CVE-2026-64834 external
https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/11d5… external
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23663 external
https://www.vulncheck.com/advisories/ffmpeg-infin… external
https://access.redhat.com/security/cve/CVE-2026-66036 self
https://bugzilla.redhat.com/show_bug.cgi?id=2506909 external
https://www.cve.org/CVERecord?id=CVE-2026-66036 external
https://nvd.nist.gov/vuln/detail/CVE-2026-66036 external
https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/5d71… external
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23783 external
https://www.vulncheck.com/advisories/ffmpeg-heap-… external
https://access.redhat.com/security/cve/CVE-2026-66039 self
https://bugzilla.redhat.com/show_bug.cgi?id=2506937 external
https://www.cve.org/CVERecord?id=CVE-2026-66039 external
https://nvd.nist.gov/vuln/detail/CVE-2026-66039 external
https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/aafb… external
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23631 external
https://www.vulncheck.com/advisories/ffmpeg-mace6… external
To clipboard 

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        "id": "CWE-835",
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          "title": "Vulnerability summary"
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          "category": "other",
          "text": "This Important vulnerability in Python\u0027s `html.parser.HTMLParser` can lead to a denial of service. By supplying specially crafted, malformed HTML with repeated unterminated markup declarations, an attacker can cause excessive CPU consumption, rendering the system unresponsive. Red Hat products utilizing this parser to process untrusted HTML content are susceptible to resource exhaustion.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "category": "external",
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          "category": "external",
          "summary": "https://github.com/python/cpython/commit/07efb08123ba9367a7107325adb9d5626dca1ca9",
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        "id": "CWE-787",
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          "text": "A flaw was found in FFmpeg\u0027s RASC video decoder. A remote attacker could exploit this by providing a crafted media stream using the RASC FourCC (Four Character Code), which is then decoded by libavcodec. This vulnerability triggers a bitstream-controlled out-of-bounds heap write and an adjacent out-of-bounds read, leading to memory corruption. This can result in a denial of service or potentially arbitrary code execution.",
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          "text": "FFmpeg: FFmpeg: Memory corruption via crafted RASC video stream",
          "title": "Vulnerability summary"
        },
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          "category": "other",
          "text": "The vulnerability in FFmpeg\u0027s RASC video decoder is rated as Important. This flaw allows a remote attacker to cause memory corruption, potentially leading to denial of service or arbitrary code execution, by providing a specially crafted media stream. Red Hat products utilizing FFmpeg for RASC video decoding are at risk if they process untrusted media content.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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          "summary": "https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/rasc.c",
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      "cve": "CVE-2026-64834",
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          "title": "Vulnerability description"
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          "title": "Vulnerability summary"
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          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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          "category": "external",
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            "integrityImpact": "NONE",
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            "userInteraction": "NONE",
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      "title": "FFmpeg: Denial of Service via crafted RTP/ASF stream"
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      "cve": "CVE-2026-66036",
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        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "discovery_date": "2026-07-24T20:02:21.975439+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2506909"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in FFmpeg. A remote attacker can exploit a heap out-of-bounds write vulnerability within the `vf_hqdn3d` filter by providing a specially crafted video file. When filtergraph reinitialization is disabled, the filter allocates undersized memory buffers for video frames. Subsequent larger frames can cause the application to write beyond these allocated boundaries, leading to heap memory corruption. This can result in arbitrary code execution or a denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "ffmpeg: FFmpeg: Arbitrary code execution via crafted video in vf_hqdn3d filter",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:83ca23b352c146804ad98fe695d4eb5223771be5cb80b8271c59c0991a5e9d61_arm64",
          "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:f44a7e3561859e9341e5bdf2454d651f08a4111fb6adfc3d1e8e28e47418ac3b_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-66036"
        },
        {
          "category": "external",
          "summary": "RHBZ#2506909",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506909"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-66036",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-66036"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-66036",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66036"
        },
        {
          "category": "external",
          "summary": "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/5d7112c60e6f0f0742ce47d448e6da0718a70f4c",
          "url": "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/5d7112c60e6f0f0742ce47d448e6da0718a70f4c"
        },
        {
          "category": "external",
          "summary": "https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23783",
          "url": "https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23783"
        },
        {
          "category": "external",
          "summary": "https://www.vulncheck.com/advisories/ffmpeg-heap-out-of-bounds-write-in-vf-hqdn3d-filter",
          "url": "https://www.vulncheck.com/advisories/ffmpeg-heap-out-of-bounds-write-in-vf-hqdn3d-filter"
        }
      ],
      "release_date": "2026-07-24T19:34:16.223000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-12T12:03:29+00:00",
          "details": "For more information visit https://access.redhat.com/errata/RHSA-2026:80856",
          "product_ids": [
            "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:83ca23b352c146804ad98fe695d4eb5223771be5cb80b8271c59c0991a5e9d61_arm64",
            "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:f44a7e3561859e9341e5bdf2454d651f08a4111fb6adfc3d1e8e28e47418ac3b_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:80856"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:83ca23b352c146804ad98fe695d4eb5223771be5cb80b8271c59c0991a5e9d61_arm64",
            "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:f44a7e3561859e9341e5bdf2454d651f08a4111fb6adfc3d1e8e28e47418ac3b_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "ffmpeg: FFmpeg: Arbitrary code execution via crafted video in vf_hqdn3d filter"
    },
    {
      "cve": "CVE-2026-66039",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "discovery_date": "2026-07-24T21:01:12.223005+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2506937"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in FFmpeg. A remote attacker could exploit a signed integer overflow vulnerability in the MACE6 audio decoder by providing a specially crafted CAF (Core Audio Format) file. This malicious file manipulates the bytes_per_packet value, leading to an undersized memory allocation and a heap out-of-bounds write. This vulnerability could allow an attacker to execute arbitrary code on the affected system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "ffmpeg: FFmpeg: Arbitrary code execution via crafted CAF file",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:83ca23b352c146804ad98fe695d4eb5223771be5cb80b8271c59c0991a5e9d61_arm64",
          "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:f44a7e3561859e9341e5bdf2454d651f08a4111fb6adfc3d1e8e28e47418ac3b_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-66039"
        },
        {
          "category": "external",
          "summary": "RHBZ#2506937",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506937"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-66039",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-66039"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-66039",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66039"
        },
        {
          "category": "external",
          "summary": "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/aafb5c655edc76a753275c383ebb139feb032718",
          "url": "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/aafb5c655edc76a753275c383ebb139feb032718"
        },
        {
          "category": "external",
          "summary": "https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23631",
          "url": "https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23631"
        },
        {
          "category": "external",
          "summary": "https://www.vulncheck.com/advisories/ffmpeg-mace6-audio-decoder-heap-out-of-bounds-write-via-caf-file",
          "url": "https://www.vulncheck.com/advisories/ffmpeg-mace6-audio-decoder-heap-out-of-bounds-write-via-caf-file"
        }
      ],
      "release_date": "2026-07-24T19:42:42.453000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-12T12:03:29+00:00",
          "details": "For more information visit https://access.redhat.com/errata/RHSA-2026:80856",
          "product_ids": [
            "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:83ca23b352c146804ad98fe695d4eb5223771be5cb80b8271c59c0991a5e9d61_arm64",
            "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:f44a7e3561859e9341e5bdf2454d651f08a4111fb6adfc3d1e8e28e47418ac3b_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:80856"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:83ca23b352c146804ad98fe695d4eb5223771be5cb80b8271c59c0991a5e9d61_arm64",
            "Red Hat OpenShift AI 3.5:registry.redhat.io/rhai/base-image-cuda-13.0-rhel9@sha256:f44a7e3561859e9341e5bdf2454d651f08a4111fb6adfc3d1e8e28e47418ac3b_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "ffmpeg: FFmpeg: Arbitrary code execution via crafted CAF file"
    }
  ]
}



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