Improper Certificate Validation Affecting @grpc/grpc-js package, versions <1.13.6>=1.14.0 <1.14.5
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-GRPCGRPCJS-20251010
- published29 Sept 2026
- disclosed28 Sept 2026
- creditSherry Zhou
Introduced: 28 Sep 2026
NewCVE-2026-101916 (opens in a new tab)How to fix?
Upgrade @grpc/grpc-js to version 1.13.6, 1.14.5 or higher.
Overview
@grpc/grpc-js is a gRPC Library for Node
Affected versions of this package are vulnerable to Improper Certificate Validation via getAuthContext() in server-interceptors.ts and the TLS session handling in transport.ts, where the authorized property of a TLS socket is not checked before treating the peer as authenticated. An attacker with an unauthorized or invalid TLS certificate can present it to the server and have it accepted as a valid authenticated peer, bypassing mutual TLS authentication and gaining unauthorized access to confidential data or the ability to perform unauthorized operations.