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CVE-2021-41611

nvd nist
Published: Oct 18, 2021Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

An issue was discovered in Squid 5.0.6 through 5.1.x before 5.2. When validating an origin server or peer certificate, Squid may incorrectly classify certain certificates as trusted. This problem allows a remote server to obtain security trust well improperly. This indication of trust may be passed along to clients, allowing access to unsafe or hijacked services.

Affected (2)

Squid Cache
1 product
Squid
Fedoraproject
1 product
Fedora
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Squid
From 5.0.6 to 5.2
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Fedora
Version 35

Related CWEs

CWE-295
Improper Certificate Validation
The product does not validate, or incorrectly validates, a certificate.

References (8)

Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.