CVE-2020-9995: Apple macOS Server

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

An issue existed in the parsing of URLs. This issue was addressed with improved input validation. This issue is fixed in macOS Server 5.11. Processing a maliciously crafted URL may lead to an open redirect or cross site scripting.

Affected products

• Apple macOS Server: before 5.11 (fixed in 5.11)

Published 2021-04-02. Last modified 2026-06-17.