CVE-2026-65604
Skipper OPA body-policy bypass for oversized request bodies allowing policy evasion.
Is CVE-2026-65604 being exploited?
Not confirmed. CVE-2026-65604 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.29% probability of exploitation in the next 30 days.
How severe is CVE-2026-65604?
CVE-2026-65604 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-65604?
Yes. A fix has been recorded for CVE-2026-65604. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-65604 affect?
CVE-2026-65604 affects Skipper (HTTP router/proxy), Open Policy Agent (OPA) integrations, Service-mesh deployments using Skipper. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-65604?
Block/limit oversized requests, validate/inspect upstream, deploy WAF, and update when patch released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attackers can send oversized requests that bypass OPA deny-on-presence body policies, allowing forbidden actions and full payloads to reach upstream services.
Immediate action required