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 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.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

No configuration.

History

24 Jul 2026, 15:19

Type	Values Removed	Values Added
References	~~() https://github.com/zalando/skipper/security/advisories/GHSA-8qqm-fp2q-v734 -~~	() https://github.com/zalando/skipper/security/advisories/GHSA-8qqm-fp2q-v734 -

23 Jul 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-23 22:16

Updated : 2026-07-30 19:53

NVD link : CVE-2026-65604

Mitre link : CVE-2026-65604

CVE.ORG link : CVE-2026-65604

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

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