CVE-2019-20372: Apple Xcode

Medium severity, CVSS 5.3. EPSS: 15% chance of exploitation in the next 30 days.

NGINX before 1.17.7, with certain error_page configurations, allows HTTP request smuggling, as demonstrated by the ability of an attacker to read unauthorized web pages in environments where NGINX is being fronted by a load balancer.

Affected products

• Apple Xcode: before 13.0 (fixed in 13.0)
• Canonical Ubuntu Linux: version 14.04 only
• F5 Nginx: before 1.17.7 (fixed in 1.17.7)
• Netapp Cloud Backup: affected versions not specified
• Opensuse Leap: version 15.1 only

Published 2020-01-09. Last modified 2026-06-17.