CVE-2025-62168: Squid-Cache Squid

High severity, CVSS 7.5. EPSS: 63.4% chance of exploitation in the next 30 days.

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.

Affected products

• Squid-Cache Squid: before 7.2 (fixed in 7.2)

Published 2025-10-17. Last modified 2026-06-17.