CVE-2026-65604: Zalando Skipper

High severity, CVSS 8.2. EPSS: 0.4% chance of exploitation in the next 30 days.

Skipper contains an incomplete fix for CVE-2026-50197 in which oversized request bodies bypass Open Policy Agent (OPA) deny-on-presence Rego policies. When a request body exceeds the configured maxBodyBytes limit, Skipper forwards the full payload to the upstream service while OPA evaluates against an empty parsed_body, so policies that deny requests based on body content are not enforced and forbidden actions proceed. No fixed version is available; v0.27.26 adds documentation guidance only.

Affected products

• Zalando Skipper

Published 2026-07-23. Last modified 2026-10-08.