CVE-2021-26544: Apache Livy

Medium severity, CVSS 5.4. EPSS: 2.8% chance of exploitation in the next 30 days.

Livy server version 0.7.0-incubating (only) is vulnerable to a cross site scripting issue in the session name. A malicious user could use this flaw to access logs and results of other users' sessions and run jobs with their privileges. This issue is fixed in Livy 0.7.1-incubating.

Affected products

• Apache Livy: version 0.7.0-incubating only

Published 2021-02-20. Last modified 2026-06-17.