CVE-2019-18860

Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.cgi.

• CWE-74

• https://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.htmlMailing List, Third Party Advisory
• https://github.com/squid-cache/squid/pull/504Patch, Third Party Advisory
• https://github.com/squid-cache/squid/pull/505Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing List, Third Party Advisory
• https://usn.ubuntu.com/4356-1/Third Party Advisory
• https://www.debian.org/security/2020/dsa-4732Third Party Advisory
• https://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.htmlMailing List, Third Party Advisory
• https://www.openwall.com/lists/oss-security/2025/11/04/7
• https://www.openwall.com/lists/oss-security/2025/11/05/1
• https://www.openwall.com/lists/oss-security/2025/11/05/7
• https://github.com/squid-cache/squid/pull/504Patch, Third Party Advisory
• https://github.com/squid-cache/squid/pull/505Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing List, Third Party Advisory
• https://usn.ubuntu.com/4356-1/Third Party Advisory
• https://www.debian.org/security/2020/dsa-4732Third Party Advisory

Published

Mar 20, 2020

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.
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