CVE-2026-93895
Undergoing Analysis Undergoing Analysis - In Progress

Unauthenticated gRPC Access Bypass in IBM WebSphere Liberty

Publication date: 2026-10-13

Last updated on: 2026-10-17

Assigner: IBM Corporation

Description
IBM WebSphere Application Server - Liberty 20.0.0.12 through 26.0.0.10 could allow an unauthenticated remote attacker to bypass access controls configured on gRPC service methods.

CVSS Scores

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Meta Information

Published
2026-10-13
Last Modified
2026-10-17
Generated
2026-10-19
AI Q&A
2026-10-15
EPSS Evaluated
2026-10-18
NVD
CVE-2026-93895
EUVD
EUVD-2026-100497

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
IBM WebSphere Application Server - Liberty 20.0.0.12

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

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Executive Summary

IBM WebSphere Application Server - Liberty versions 20.0.0.12 through 26.0.0.10 have a flaw where an unauthenticated remote attacker can bypass access controls on gRPC service methods. This means unauthorized users could potentially access or manipulate sensitive functions without proper authentication.

Impact Analysis

This vulnerability could allow attackers to gain unauthorized access to gRPC services, potentially leading to data breaches, unauthorized actions, or service disruption. The high CVSS score (9.1) indicates a severe risk of confidentiality and integrity compromise.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR (data protection) and HIPAA (health information privacy) requirements. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Update IBM WebSphere Application Server - Liberty to a version beyond 26.0.0.10 to address the gRPC access control bypass vulnerability.

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