CVE-2020-1695: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 2% chance of exploitation in the next 30 days.

A flaw was found in all resteasy 3.x.x versions prior to 3.12.0.Final and all resteasy 4.x.x versions prior to 4.6.0.Final, where an improper input validation results in returning an illegal header that integrates into the server's response. This flaw may result in an injection, which leads to unexpected behavior when the HTTP response is constructed.

Affected products

• Fedoraproject Fedora: version 32 only; version 33 only
• Red Hat Resteasy: from 3.0.0, before 3.12.0 (fixed in 3.12.0); from 4.0.0, before 4.6.0 (fixed in 4.6.0)

Published 2020-05-19. Last modified 2026-06-17.