CVE-2025-62168

Name	CVE-2025-62168
Description	Squid is a caching proxy for the Web. In Squid versions prior to 7.2, a failure to redact HTTP authentication credentials in error handling allows information disclosure. The vulnerability allows a script to bypass browser security protections and learn the credentials a trusted client uses to authenticate. This potentially allows a remote client to identify security tokens or credentials used internally by a web application using Squid for backend load balancing. These attacks do not require Squid to be configured with HTTP authentication. The vulnerability is fixed in version 7.2. As a workaround, disable debug information in administrator mailto links generated by Squid by configuring squid.conf with email_err_data off.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1118341

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
squid (PTS)	bullseye	4.13-10+deb11u3	vulnerable
	bullseye (security)	4.13-10+deb11u5	vulnerable
	bookworm, bookworm (security)	5.7-2+deb12u3	vulnerable
	trixie	6.13-2	vulnerable
	forky, sid	7.1-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
squid	source	(unstable)	(unfixed)			1118341

Notes

https://github.com/squid-cache/squid/security/advisories/GHSA-c8cc-phh7-xmxr
https://github.com/squid-cache/squid/commit/0951a0681011dfca3d78c84fd7f1e19c78a4443f (SQUID_7_2)