CVE-2026-65604

Description

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.

References

https://www.vulncheck.com/advisories/skipper-incomplete-fix-for-cve-2026-50197-policy-bypass

https://github.com/zalando/skipper/security/advisories/GHSA-8qqm-fp2q-v734

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS