CVE-2015-1843: Red Hat Docker

Medium severity, CVSS 4.3. EPSS: 1.6% chance of exploitation in the next 30 days.

The Red Hat docker package before 1.5.0-28, when using the --add-registry option, falls back to HTTP when the HTTPS connection to the registry fails, which allows man-in-the-middle attackers to conduct downgrade attacks and obtain authentication and image data by leveraging a network position between the client and the registry to block HTTPS traffic. NOTE: this vulnerability exists because of a CVE-2014-5277 regression.

Affected products

• Red Hat Docker: up to and including 1.5.0-27

Published 2015-04-06. Last modified 2026-06-17.