CVE-2019-1010260: Ktlint Project Ktlint

High severity, CVSS 8.1. EPSS: 1.5% chance of exploitation in the next 30 days.

Using ktlint to download and execute custom rulesets can result in arbitrary code execution as the served jars can be compromised by a MITM. This attack is exploitable via Man in the Middle of the HTTP connection to the artifact servers. This vulnerability appears to have been fixed in 0.30.0 and later; after commit 5e547b287d6c260d328a2cb658dbe6b7a7ff2261.

Affected products

• Ktlint Project Ktlint: before 0.30.0 (fixed in 0.30.0)

Published 2019-04-02. Last modified 2026-06-17.