CVE-2021-22876

Name	CVE-2021-22876
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2664-1, DSA-4881-1
Debian Bugs	986269

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
curl (PTS)	bullseye	7.74.0-1.3+deb11u13	fixed
	bullseye (security)	7.74.0-1.3+deb11u14	fixed
	bookworm	7.88.1-10+deb12u8	fixed
	bookworm (security)	7.88.1-10+deb12u5	fixed
	sid, trixie	8.11.0-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
curl	source	stretch	7.52.1-5+deb9u14	DLA-2664-1
curl	source	buster	7.64.0-4+deb10u2	DSA-4881-1
curl	source	(unstable)	7.74.0-1.2		986269

https://curl.se/docs/CVE-2021-22876.html
Fixed by: https://github.com/curl/curl/commit/7214288898f5625a6cc196e22a74232eada7861c