CVE-2025-62168

CRITICAL

10.0

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.

CVE Details

CVSS v3.1 Score10.0

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published10/17/2025

Last Modified11/5/2025

Sourcenvd

Honeypot Sightings0

Affected Products

squid-cache:squid

Weaknesses (CWE)

CWE-209CWE-550

References

https://github.com/squid-cache/squid/commit/0951a0681011dfca3d78c84fd7f1e19c78a4443f(security-advisories@github.com)

https://github.com/squid-cache/squid/security/advisories/GHSA-c8cc-phh7-xmxr(security-advisories@github.com)

http://www.openwall.com/lists/oss-security/2025/11/05/6(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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