CVE-2023-34339: JetBrains Ktor

Low severity, CVSS 3.3. EPSS: 0.2% chance of exploitation in the next 30 days.

In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message

Affected products

• JetBrains Ktor: before 2.3.1 (fixed in 2.3.1)

Published 2023-06-01. Last modified 2026-06-17.