CVE-2021-41611

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.

• CWE-295

• http://www.openwall.com/lists/oss-security/2021/12/23/2Mailing List, Third Party Advisory
• http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patchVendor Advisory
• https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5rPatch, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/
• http://www.openwall.com/lists/oss-security/2021/12/23/2Mailing List, Third Party Advisory
• http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patchVendor Advisory
• https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5rPatch, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/

Published

Oct 18, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-41599A remote code execution vulnerability was identified in GitH…8.8
• CVE-2021-4160There is a carry propagation bug in the MIPS32 and MIPS64 sq…5.9
• CVE-2021-41608A file disclosure vulnerability in the UploadedImageDisplay.…7.5
• CVE-2021-41609SQL injection in the ID parameter of the UploadedImageDispla…9.8
• CVE-2021-4161The affected products contain vulnerable firmware, which cou…7.5
• CVE-2021-41610Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
• CVE-2021-41612An issue was discovered in the ALU unit of the OpenRISC mor1…8.8
• CVE-2021-41613An issue was discovered in the controller unit of the OpenRI…4.3
• CVE-2021-41614An issue was discovered in the controller unit of the OpenRI…7.8
• CVE-2021-41615websda.c in GoAhead WebServer 2.1.8 has insufficient nonce e…9.8
• CVE-2021-41616Apache DB DdlUtils 1.0 included a BinaryObjectsHelper that w…9.8
• CVE-2021-41617sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non…7