CVE-2025-62168 – Squid vulnerable to information disclosure via authentication credential leakage in error handling

CVE ID : CVE-2025-62168

Published : Oct. 17, 2025, 4:21 p.m. | 19 minutes ago

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.

Severity: 0.0 | NA

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