When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and theclient can then download the file from one or several of them. In a serial orparallel manner.If one of the servers hosting the contents has been breached and the contentsof the specific file on that server is replaced with a modified payload, curlshould detect this when the hash of the file mismatches after a completeddownload. It should remove the contents and instead try getting the contentsfrom another URL. This is not done, and instead such a hash mismatch is onlymentioned in text and the potentially malicious content is kept in the file ondisk.
History

Thu, 16 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published: 2021-08-05T00:00:00.000Z

Updated: 2026-04-16T14:09:32.149Z

Reserved: 2021-01-06T00:00:00.000Z

Link: CVE-2021-22922

cve-icon Vulnrichment

Updated: 2024-08-03T18:58:26.106Z

cve-icon NVD

Status : Modified

Published: 2021-08-05T21:15:11.173

Modified: 2026-04-16T15:16:43.730

Link: CVE-2021-22922

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-07-21T06:00:00Z

Links: CVE-2021-22922 - Bugzilla