CVE-2026-92791: Uber Kraken

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Uber Kraken through 0.1.29 fails to validate the tag parameter in the /tags/{tag} endpoint, allowing unauthenticated attackers to traverse outside the configured storage root. Attackers can use percent-encoded parent-directory segments in the tag parameter to read arbitrary files accessible to the testfs backend process.

Affected products

• Uber Kraken: up to and including 0.1.29

Published 2026-09-16. Last modified 2026-09-24.