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Findings

CVE-2021-22923

When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are…

Published Aug 5, 2021 · updated Oct 14, 2026 · haxx curl

When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 5, 2021 · NIST NVD

    Detected

    When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.

  2. Oct 14, 2026 · NIST NVD

    Updated

    When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.

Affected

  • cpe fedoraproject/fedora33
  • cpe haxx/curlversion unspecified
  • cpe netapp/cloud backupversion unspecified
  • cpe netapp/clustered data ontapversion unspecified
  • cpe netapp/h300s firmwareversion unspecified
  • cpe netapp/h500s firmwareversion unspecified
  • cpe netapp/h700s firmwareversion unspecified
  • cpe netapp/hci management nodeversion unspecified
  • cpe netapp/solidfireversion unspecified
  • cpe oracle/mysql serverversion unspecified
  • cpe siemens/sinec infrastructure network servicesversion unspecified

Sources

  • CVE.orgCVE-2021-22923

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2021-22923

    30-day exploitation probability 1.9%

    first.org
  • NIST NVDCVE-2021-22923

    When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents

    nvd.nist.gov

References