MEDIUM5.3
PYSEC-2026-1426
gRPC connection termination issue
Quick fix
PYSEC-2026-1426 — grpcio: upgrade to the fixed version with the command below.
pip install --upgrade 'grpcio>=1.53.1'Details
gRPC contains a vulnerability whereby a client can cause a termination of connection between a HTTP2 proxy and a gRPC server: a base64 encoding error for `-bin` suffixed headers will result in a disconnection by the gRPC server, but is typically allowed by HTTP2 proxies. We recommend upgrading beyond the commit in https://github.com/grpc/grpc/pull/32309.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-32732[ADVISORY]
- https://github.com/grpc/grpc/pull/32309[WEB]
- https://github.com/grpc/grpc/commit/29d8beee0ac2555773b2a2dda5601c74a95d6c10[WEB]
- https://github.com/grpc/grpc/commit/65a2a895afaf1d2072447b9baf246374b182a946[WEB]
- https://github.com/grpc/grpc/releases/tag/v1.53.1[WEB]
- https://github.com/grpc/grpc/releases/tag/v1.54.2[WEB]
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/grpc/CVE-2023-32732.yml[WEB]
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/37IDNVY5AWVH7JDMM2SDTL24ZPPZJNSY[WEB]
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VWE44J5FG7THHL7XVEVTNIGEYBNKJBLL[WEB]
- https://pypi.org/project/grpcio[PACKAGE]
- https://github.com/advisories/GHSA-9hxf-ppjv-w6rq[ADVISORY]