CVE-2021-27375: Containous Traefik

Medium severity, CVSS 5.3. EPSS: 0.8% chance of exploitation in the next 30 days.

Traefik before 2.4.5 allows the loading of IFRAME elements from other domains.

Affected products

• Containous Traefik: before 2.4.5 (fixed in 2.4.5)

Published 2021-02-18. Last modified 2026-06-17.