OCTOBER 8, 2026
Live Feed
Back to database
Case File

CVE-2026-101916

HIGH · CVSS 7.4 EPSS 0.21% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-28 · Last synced 2026-10-08

CyberRota Analysis

AI-Generated

The vulnerability affects the @grpc/grpc-js library, specifically in the handling of peer certificates when server credentials are configured to not require client certificates. This flaw allows unauthorized certificates to be incorrectly treated as authorized, leading to potential improper authentication in applications utilizing this library, particularly when RBAC authentication is enabled. Organizations using affected versions of @grpc/grpc-js should prioritize updating to versions 1.14.5 or 1.13.6 to mitigate the risk of unauthorized access.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-101916
Severity
HIGH
CVSS
7.4
EPSS
0.21%
Java

Original NVD Description

@grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.13.6 and 1.14.5, getAuthContext does not distinguish authorized from unauthorized peer certificates when server credentials set requireClientCertificate to false. When applications use the returned authentication context, they can treat an unauthorized certificate as authorized, causing improper authentication. @grpc/grpc-js-xds can reach this condition when RBAC authentication is enabled in affected configurations. This issue is fixed in version 1.14.5 and 1.13.6.