Linux

libundertow-java security updates

Patch Radar has 5 security fixes for libundertow-java, closing 5 CVEs. The newest is libundertow-java 1.4.23-3ubuntu0.1~esm1 (1.4.23-3ubuntu0.1~esm1), released January 7, 2026.

Latest version
n/a
Release date not known
Security fixes
5
On record in Patch Radar
CVEs
5
Closed by those fixes
Exploited
0
Vendor report or CISA KEV

Security fixes, newest first

PriorityFixReleaseFixed inCVEsExploitedReleased
High libundertow-java 1.4.23-3ubuntu0.1~esm1Ubuntu 18.04.6 LTS (bionic)1.4.23-3ubuntu0.1~esm1 1 Jan 7, 2026
High libundertow-java 2.0.29-1ubuntu0.1~esm1Ubuntu 20.04 LTS (focal)2.0.29-1ubuntu0.1~esm1 1 Jan 7, 2026
High libundertow-java 2.2.16-1ubuntu0.1~esm1Ubuntu 22.04.1 LTS (jammy)2.2.16-1ubuntu0.1~esm1 1 Jan 7, 2026
High libundertow-java 2.3.8-2ubuntu0.1~esm1Ubuntu 24.04.5 LTS (noble)2.3.8-2ubuntu0.1~esm1 1 Jan 7, 2026
Routine libundertow-java 2.0.23-1Ubuntu 20.04 LTS (focal)2.0.23-1 4 Jul 25, 2019