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.
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Fri, 17 Oct 2025 18:15:00 +0000
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ssvc
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Fri, 17 Oct 2025 16:30:00 +0000
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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. | |
Title | Squid vulnerable to information disclosure via authentication credential leakage in error handling | |
Weaknesses | CWE-209 CWE-550 |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-10-17T17:22:38.613Z
Reserved: 2025-10-07T16:12:03.425Z
Link: CVE-2025-62168

Updated: 2025-10-17T17:21:51.075Z

Status : Received
Published: 2025-10-17T17:15:49.037
Modified: 2025-10-17T17:15:49.037
Link: CVE-2025-62168

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