Published: 31 March 2021
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.
CVSS 3 base score: 5.3
Launchpad, Ubuntu, Debian
(end of ESM support, was needed)
affects curl versions between 7.1.1 and 7.75.0