Arch Linux — matrix-synapse — multiple vulnerabilities (4 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-202011-23 Related CVEs: CVE-2020-26890 CVE-2020-26891 CVE-2019-5885 CVE-2021-29471 Upstream summary: Type: denial of service. Status: Fixed. Affected: 1.19.1-1. Fixed in: 1.20.1-1. Group: AVG-1296. Table of contents Symptom & Impact Environment & […]