CVE-2021-27919: Fedoraproject Fedora

Medium severity, CVSS 5.5. EPSS: 1.5% chance of exploitation in the next 30 days.

archive/zip in Go 1.16.x before 1.16.1 allows attackers to cause a denial of service (panic) upon attempted use of the Reader.Open API for a ZIP archive in which ../ occurs at the beginning of any filename.

Affected products

• Fedoraproject Fedora: version 34 only; version 35 only
• Golang Go: from 1.16.0, before 1.16.1 (fixed in 1.16.1)

Published 2021-03-11. Last modified 2026-06-17.