CVE-2026-65838 Skipper: an oversized declared-`Content-Length` body still hands OPA an empty `parsed_body`, so deny-on-presence Rego policies fail OPEN while the full payload reaches upstream

Skipper is an HTTP router and reverse proxy for service composition. Prior to 0.27.35, the opaAuthorizeRequestWithBody filter in filters/openpolicyagent/openpolicyagent.go can allow an oversized declared Content-Length request to bypass a deny-on-presence Rego policy because...

CVE-2026-65604

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...

CVE-2026-65604

Skipper has an incomplete fix for CVE-2026-50197. Oversized request bodies can bypass Open Policy Agent (OPA) deny-on-presence Rego policies because, when body size exceeds maxBodyBytes, Skipper forwards the full payload while OPA evaluates an empty parsed_body. This means policies that deny requ...

PT-2026-64187

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...

GO-2026-6019 Skipper: Incomplete fix for CVE-2026-50197: an oversized body can bypass OPA deny-on-presence Rego policies in github.com/zalando/skipper

Skipper: Incomplete fix for CVE-2026-50197: an oversized body can bypass OPA deny-on-presence Rego policies in github.com/zalando/skipper...

GHSA-8QQM-FP2Q-V734 Skipper: Incomplete fix for CVE-2026-50197: an oversized body can bypass OPA deny-on-presence Rego policies

Summary A wrong policy can be an open door. You have to check input.attributes.request.http.truncatedbody in your policy. Description Incomplete fix for CVE-2026-50197: an oversized declared-Content-Length body still hands OPA an empty parsedbody, so deny-on-presence Rego policies fail OPEN while...