CVE-2004-0189

EPSS 2.5%

squid - ACL bypass

Published: 3/15/2004Modified: 4/28/2026

Description

The "%xx" URL decoding function in Squid 2.5STABLE4 and earlier allows remote attackers to bypass url_regex ACLs via a URL with a NULL ("%00") character, which causes Squid to use only a portion of the requested URL when comparing it against the access control lists.

Affected packages (2)

References (1)