cve.bz

CVE-2023-32732

5.3 mediumEPSS 0.5%

Medium (5.3). EPSS 0.5% chance of exploitation in the next 30 days. Fixed in io.grpc:grpc-protobuf 1.53.1, 1.54.2.

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 https://www.google.com/url

Severity

CVSS 3.1

5.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-31)
CWE
CWE-440
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-9hxf-ppjv-w6rqMavenio.grpc:grpc-protobuf>=1.53.0 <1.53.11.53.1
GHSA-9hxf-ppjv-w6rqPyPIgrpcio>=1.53.0 <1.53.11.53.1
GHSA-9hxf-ppjv-w6rqRubyGemsgrpc>=1.53.0 <1.53.11.53.1
GHSA-9hxf-ppjv-w6rqMavenio.grpc:grpc-protobuf>=1.54.0 <1.54.21.54.2
GHSA-9hxf-ppjv-w6rqPyPIgrpcio>=1.54.0 <1.54.21.54.2
GHSA-9hxf-ppjv-w6rqRubyGemsgrpc>=1.54.0 <1.54.21.54.2
PYSEC-2026-1426PyPIgrpcio>=1.53.0 <1.53.1
>=1.54.0 <1.54.2		1.53.1, 1.54.2

References

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