HIGH

CVE-2026-65604

CVSS v3

8.2

HIGH

EPSS Score

0.3%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

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.

Technical details

CVSS v3 Vector
3.1
Published
7/23/2026
Last Modified
7/23/2026

Frequently asked questions

What is 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.

Is CVE-2026-65604 actively exploited?

Active exploitation of CVE-2026-65604 has not been confirmed. The EPSS score is 0.3%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-65604?

CVE-2026-65604 has a CVSS v3 base score of 8.2 (HIGH severity), with vector string 3.1.

Is CVE-2026-65604 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.