CVE Database›Document archive›CVE-2021-22923

CVE-2021-22923

curl: Metalink download sends credentials

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Severity

Moderate

Red Hat Product Security

5.7

CVSS 3.1

Review impact separately from score.

Published · July 21, 2021

Updated · October 14, 2026

Description

A flaw was found in curl in the way curl handles credentials when downloading content using the Metalink feature. This flaw allows malicious actors controlling a hosting server to gain access to credentials provided while downloading content without the user's knowledge. The highest threat from this vulnerability is to confidentiality.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

This flaw can be mitigated by upgrading the affected curl utility to version 7.78.0 or by disabling the metalink feature in your current build

CVSS / CWE

CVSS 3.1 · 5.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

CWE-522 · Insufficiently Protected Credentials