CVE-2019-19389: JetBrains Ktor

Medium severity, CVSS 5.4. EPSS: 0.8% chance of exploitation in the next 30 days.

JetBrains Ktor framework before version 1.2.6 was vulnerable to HTTP Response Splitting.

Affected products

• JetBrains Ktor: before 1.2.6 (fixed in 1.2.6)

Published 2019-12-26. Last modified 2026-06-17.