CVE-2018-1340: Apache Guacamole

High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days.

Prior to 1.0.0, Apache Guacamole used a cookie for client-side storage of the user's session token. This cookie lacked the "secure" flag, which could allow an attacker eavesdropping on the network to intercept the user's session token if unencrypted HTTP requests are made to the same domain.

Affected products

• Apache Guacamole: up to and including 0.9.14

Published 2019-02-07. Last modified 2026-06-17.