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TI-2026-46767 Aliases CVE-2026-65604GHSA-p75f-h73c-3rcp

Skipper Incomplete Fix for CVE-2026-50197 Policy Bypass

Priority HIGH 77CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · Low · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0039 33rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
zalandoskipper——No fix listedCNA
  • skipper Vendorzalando Affected — Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-65604
  2. 2026-10-03 Alias added: GHSA-p75f-h73c-3rcp

References

Advisory 1

  • TI-2026-36956 Skipper: opaAuthorizeRequestWithBody filter bypasses OPA policy on Transfer-Encoding: chunked / HTTP/2 requests CVSS 4.0HIGH 7.8
  • TI-2026-58867 Skipper: OPA body-authz bypass: truncated_body mitigation fails open on chunked/HTTP-2 (incomplete fix CVE-2026-50197) CVSS 3.1HIGH 7.5
  • TI-2022-18154 Zalando Skipper v0.13.236 is vulnerable to Server-Side Request Forgery (SSRF). CVSS 3.1CRITICAL 9.8
  • TI-2026-46913 Improper check for unusual conditions in zalando skipper CVSS 3.1HIGH 8.2
  • TI-2026-19115 Skipper arbitrary code execution through lua filters CVSS 3.1HIGH 8.8
  • TI-2026-19725 Skipper Ingress Controller Allows Unauthorized Access to Internal Services via ExternalName CVSS 3.1HIGH 8.1
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences