VDB

DEBIAN-CVE-2019-12523

DEBIAN-CVE-2019-12523 PUBLISHED CVSS 9.100000381469727 CRITICAL

An issue was discovered in Squid before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.

Risk Scores

CVSS v3.1
9.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Products

VendorProductVersions
Debian:11squid0, 0, 0
Debian:13squid0, 0, 0
Debian:14squid0, 0, 0
Debian:12squid0, 0, 0

Timeline

  • Nov 26, 2019 CVE Published
  • Apr 28, 2026 CVE Updated
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