CVE-2021-23772: Iris-Go Iris

High severity, CVSS 8.8. EPSS: 1.8% chance of exploitation in the next 30 days.

This affects all versions of package github.com/kataras/iris; all versions of package github.com/kataras/iris/v12. The unsafe handling of file names during upload using UploadFormFiles method may enable attackers to write to arbitrary locations outside the designated target folder.

Affected products

• Iris-Go Iris: up to and including 12.1.8; version 12.2.0 only

Published 2021-12-24. Last modified 2026-06-17.