Vulnerability Report

CVE-2025-62168

Title: Squid-Cache Squid Information Disclosure

Information Disclosure

Proof Of Concept

PoC Available for CVE-2025-62168

CWE Category CWE-209
Published Date Oct 17, 2025
Modified Date Nov 05, 2025
Exploit Status Available
Score 10.0 CVSS v3.1
Exploit Probability (EPSS)
62.87%

Vulnerability Summary

CVE-2025-62168: 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.

Impacted Vendors

S
squid 1
S
squid-cache 1

Reference Links

https://github.com/squid-cache/squid/commit/0951a0681011dfca3d78c84fd7f1e19c78a4443f https://github.com/squid-cache/squid/security/advisories/GHSA-c8cc-phh7-xmxr http://www.openwall.com/lists/oss-security/2025/11/05/6
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
10.0
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-62168 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/monzaviman/CVE-2025-62168
View Code
GitHub https://github.com/nehkark/CVE-2025-62168
View Code
GitHub https://github.com/shahroodcert/CVE-2025-62168
View Code
MODIFIED

Vulnerability data or affected products updated.

MODIFIED

Vulnerability data updated via NVD.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Affected Stack

No specific products linked.