Description
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.
Published: 2021-08-05
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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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'}


Subscriptions

Fedoraproject Fedora
Haxx Curl
Netapp Cloud Backup Clustered Data Ontap H300e H300e Firmware H300s H300s Firmware H410s H410s Firmware H500e H500e Firmware H500s H500s Firmware H700e H700e Firmware H700s H700s Firmware Hci Management Node Solidfire
Oracle Mysql Server
Redhat Enterprise Linux Rhel Eus
Siemens Sinec Infrastructure Network Services
Splunk Universal Forwarder
cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

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

cve-icon OpenCVE Enrichment

No data.

Weaknesses