Ubuntu 16.04 — ruby-rack-cors — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4571-1 Related CVEs: CVE-2019-18978 Upstream summary: It was discovered that rack-cors did not properly handle relative file paths. An attacker could use this vulnerability to access arbitrary files. Table of […]