gRPC up to 1.14.3 HTTP/2 Stream Initiation denial of service

Summaryinfo

A vulnerability was found in gRPC up to 1.14.3 and classified as problematic. The impacted element is an unknown function of the component HTTP2 Stream Initiation. Such manipulation leads to denial of service. This vulnerability is documented as CVE-2026-48068. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in gRPC up to 1.14.3 and classified as problematic. Affected by this issue is an unknown code of the component HTTP2 Stream Initiation. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

@grpc/grps-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.9.16, 1.10.12, 1.11.4, 1.12.7, 1.13.5, and 1.14.4, an invalid incoming HTTP/2 stream initiation can cause a server process created using @grpc/grpc-js to crash. This issue is fixed in versions 1.9.16, 1.10.12, 1.11.4, 1.12.7, 1.13.5, and 1.14.4.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-48068 since 05/20/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 1.9.16, 1.10.12, 1.11.4, 1.12.7, 1.13.5 or 1.14.4 eliminates this vulnerability.

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Productinfo

Name

• gRPC

Version

• 1.9.0
• 1.9.1
• 1.9.2
• 1.9.3
• 1.9.4
• 1.9.5
• 1.9.6
• 1.9.7
• 1.9.8
• 1.9.9
• 1.9.10
• 1.9.11
• 1.9.12
• 1.9.13
• 1.9.14
• 1.9.15
• 1.10.0
• 1.10.1
• 1.10.2
• 1.10.3
• 1.10.4
• 1.10.5
• 1.10.6
• 1.10.7
• 1.10.8
• 1.10.9
• 1.10.10
• 1.10.11
• 1.11.0
• 1.11.1
• 1.11.2
• 1.11.3
• 1.12.0
• 1.12.1
• 1.12.2
• 1.12.3
• 1.12.4
• 1.12.5
• 1.12.6
• 1.13.0
• 1.13.1
• 1.13.2
• 1.13.3
• 1.13.4
• 1.14.0
• 1.14.1
• 1.14.2
• 1.14.3

CPE 2.3info

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CPE 2.2info

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