Bug 2542678 (CVE-2026-101916) - CVE-2026-101916 grpc-js: grpc-js: Authentication bypass via improper peer certificate validation
Summary: CVE-2026-101916 grpc-js: grpc-js: Authentication bypass via improper peer cer...
Keywords:
Status: NEW
Alias: CVE-2026-101916
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-28 20:33 UTC by OSIDB Bzimport
Modified: 2026-09-29 05:01 UTC (History)
29 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-28 20:33:31 UTC 
@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.
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