vulnerability

Alpine Linux: CVE-2021-22876: Exposure of Private Personal Information to an Unauthorized Actor

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Apr 1, 2021
Added
Aug 22, 2024
Modified
Dec 5, 2025

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.

Solution

alpine-linux-upgrade-curl
Title
NEW

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