CVE-2021-22924
curl: Bad connection reuse due to flawed path name checks
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 21, 2021
Updated · June 28, 2026
Description
A flaw was found in libcurl in the way libcurl handles previously used connections without accounting for 'issuer cert' and comparing the involved paths case-insensitively. This flaw allows libcurl to use the wrong connection. 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
CVSS / CWE
CVSS 3.1 · 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-295 · Improper Certificate Validation