CVE-2026-88939: Knowns-Dev Knowns

High severity, CVSS 8.3. EPSS: 0.5% chance of exploitation in the next 30 days.

knowns through 0.33.0 exempts the project.set action from permission guard checks unconditionally, allowing read-only agent sessions to bypass restrictions. Attackers can invoke project.set to repoint the server at another project directory and obtain write access capabilities.

Affected products

• Knowns-Dev Knowns: up to and including 0.33.0

Published 2026-09-10. Last modified 2026-09-15.