What’s Vulnerable › Vulnerabilities

CVE-2024-37168: @grpc/grpc-js can allocate memory for incoming messages well above configured limits

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-10 · updated 2026-06-17
• Weakness: CWE-789

Description

@grpc/grps-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to versions 1.10.9, 1.9.15, and 1.8.22, there are two separate code paths in which memory can be allocated per message in excess of the `grpc.max_receive_message_length` channel option: If an incoming message has a size on the wire greater than the configured limit, the entire message is buffered before it is discarded; and/or if an incoming message has a size within the limit on the wire but decompresses to a size greater than the limit, the entire message is decompressed into memory, and on the server is not discarded. This has been patched in versions 1.10.9, 1.9.15, and 1.8.22.

Affected products

• Google gRPC: from 1.10.0 before 1.10.9; from 1.9.0 before 1.9.15; before 1.8.22 — fixed in 1.10.9, 1.8.22, 1.9.15

How to fix

Upgrade to a fixed version: Google gRPC 1.10.9, 1.8.22, 1.9.15. Check the vendor advisory for mitigations.

References

• https://github.com/grpc/grpc-node/commit/08b0422dae56467ecae1007e899efe66a8c4a650
• https://github.com/grpc/grpc-node/commit/674f4e351a619fd4532f84ae6dff96b8ee4e1ed3
• https://github.com/grpc/grpc-node/commit/a8a020339c7eab1347a343a512ad17a4aea4bfdb
• https://github.com/grpc/grpc-node/security/advisories/GHSA-7v5v-9h63-cj86
• https://github.com/grpc/grpc-node/commit/08b0422dae56467ecae1007e899efe66a8c4a650
• https://github.com/grpc/grpc-node/commit/674f4e351a619fd4532f84ae6dff96b8ee4e1ed3
• https://github.com/grpc/grpc-node/commit/a8a020339c7eab1347a343a512ad17a4aea4bfdb
• https://github.com/grpc/grpc-node/security/advisories/GHSA-7v5v-9h63-cj86

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