Is CVE-2026-17459 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-17459?

CVE-2026-17459 has a CVSS v3 severity of MEDIUM (4.3).

Back

CVE-2026-17459

Description

A vulnerability was determined in perwendel spark up to 2.9.4. This vulnerability affects the function staticFiles.externalLocation of the file src/main/java/spark/resource/ExternalResourceHandler.jav of the component SparkJava. Executing a manipulation can lead to symlink following. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.