Impacts widely used IBM WebSphere Liberty app server; unauthenticated gRPC access-control bypass can enable enterprise-wide unauthorized access to services/data.
CVE-2026-93895
Unauthenticated bypass of gRPC access controls in IBM WebSphere Liberty
Is CVE-2026-93895 being exploited?
Not confirmed. CVE-2026-93895 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 0.45% probability of exploitation in the next 30 days.
How severe is CVE-2026-93895?
CVE-2026-93895 is rated Critical with a CVSS score of 9.1. 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-2026-93895?
Yes. A fix has been recorded for CVE-2026-93895. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-93895 affect?
CVE-2026-93895 affects IBM WebSphere Application Server - Liberty 20.0.0.12 through 26.0.0.10. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-93895?
Apply IBM Liberty security updates immediately; restrict/block gRPC endpoints until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote attacker can bypass gRPC method access controls to invoke protected methods and access or manipulate data.
Immediate action required