CVE-2026-52833: Nuclio

High severity, CVSS 8.0. EPSS: 0.6% chance of exploitation in the next 30 days.

Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. Prior to version 1.16.5, Nuclio's Java runtime generates a build.gradle file during function builds using Go's text/template package. The template renders runtimeAttributes.repositories[] values with the {{ . }} action, which performs no escaping. An attacker can embed a closing brace (}) to break out of the repositories {} block and append arbitrary Groovy statements that execute unconditionally during the Gradle configuration phase. This issue has been patched in version 1.16.5.

Affected products

• Nuclio Nuclio: before 1.16.5 (fixed in 1.16.5)

Published 2026-09-02. Last modified 2026-09-09.