squid_ldap_auth in Squid 2.5 and earlier allows remote authenticated users to bypass username-based Access Control Lists (ACLs) via a username with a space at the beginning or end, which is ignored by the LDAP server.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade squid | Jul 30, 2024 | May 2, 2005 |
| Freebsd | — | Upgrade squid | Dec 10, 2025 | Jan 19, 2005 |
| Gentoo Linux | — | Upgrade net-proxy/squid. | Oct 30, 2017 | May 2, 2005 |
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