CVE-2021-22876

MediumCVSS 5.3/10Last modified Oct 14, 2026

Description

curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-359 CWE-200

Affected software

No affected versions have been published.

Timeline

Published: Apr 1, 2021
Last modified: Oct 14, 2026
NVD status: Modified

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