gRPC-Go: Heap Memory Exhaustion (OOM) via HTTP/2 DATA Frame Fragmentation

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-84304 · CVE overview and exploitation status

EUVD-2026-69420

GHSA-vp52-pcj8-j9qc

GO-2026-6348

cve-program · CVE-2026-84304

• https://github.com/grpc/grpc-go/security/advisories/GHSA-vp52-pcj8-j9qc
• https://github.com/grpc/grpc-go/pull/9331
• https://github.com/grpc/grpc-go/pull/9333
• https://github.com/grpc/grpc-go/commit/7354d9c8debb4bcf2225bf429857078de310c176
• https://github.com/grpc/grpc-go/commit/8cfeca0e1ee5ea0980dcc320e20240fa1079ec77
• https://github.com/grpc/grpc-go/releases/tag/v1.83.1

euvd · EUVD-2026-69420

• https://github.com/grpc/grpc-go/security/advisories/GHSA-vp52-pcj8-j9qc
• https://github.com/grpc/grpc-go/pull/9331
• https://github.com/grpc/grpc-go/pull/9333
• https://github.com/grpc/grpc-go/commit/7354d9c8debb4bcf2225bf429857078de310c176
• https://github.com/grpc/grpc-go/commit/8cfeca0e1ee5ea0980dcc320e20240fa1079ec77
• https://github.com/grpc/grpc-go/releases/tag/v1.83.1

nvd · CVE-2026-84304

• https://github.com/grpc/grpc-go/commit/7354d9c8debb4bcf2225bf429857078de310c176
• https://github.com/grpc/grpc-go/commit/8cfeca0e1ee5ea0980dcc320e20240fa1079ec77
• https://github.com/grpc/grpc-go/pull/9331
• https://github.com/grpc/grpc-go/pull/9333
• https://github.com/grpc/grpc-go/releases/tag/v1.83.1
• https://github.com/grpc/grpc-go/security/advisories/GHSA-vp52-pcj8-j9qc

osv · GHSA-vp52-pcj8-j9qc

• https://github.com/grpc/grpc-go/security/advisories/GHSA-vp52-pcj8-j9qc
• https://nvd.nist.gov/vuln/detail/CVE-2026-84304
• https://github.com/grpc/grpc-go/pull/9331
• https://github.com/grpc/grpc-go/pull/9333
• https://github.com/grpc/grpc-go/commit/7354d9c8debb4bcf2225bf429857078de310c176
• https://github.com/grpc/grpc-go/commit/8cfeca0e1ee5ea0980dcc320e20240fa1079ec77
• https://github.com/grpc/grpc-go
• https://github.com/grpc/grpc-go/releases/tag/v1.83.1

osv · GO-2026-6348

• https://github.com/grpc/grpc-go/security/advisories/GHSA-vp52-pcj8-j9qc
• https://github.com/grpc/grpc-go/commit/7354d9c8debb4bcf2225bf429857078de310c176
• https://github.com/grpc/grpc-go/commit/8cfeca0e1ee5ea0980dcc320e20240fa1079ec77
• https://github.com/grpc/grpc-go/pull/9331
• https://github.com/grpc/grpc-go/pull/9333
• https://github.com/grpc/grpc-go/releases/tag/v1.83.1

• gRPC-Go is the Go language implementation of gRPC. Prior to 1.83.1, internal/transport/transport.go stores each fragmented HTTP/2 DATA frame as a separate recvMsg in recvBuffer, so millions of one-byte frames can consume disproportionate he… · Advisory content revised · 9 Nov 2026
• gRPC-Go is the Go language implementation of gRPC. Prior to 1.83.1, internal/transport/transport.go stores each fragmented HTTP/2 DATA frame as a separate recvMsg in recvBuffer, so millions of one-byte frames can consume disproportionate he… · Advisory content revised · 7 Nov 2026
• gRPC-Go is the Go language implementation of gRPC. Prior to 1.83.1, internal/transport/transport.go stores each fragmented HTTP/2 DATA frame as a separate recvMsg in recvBuffer, so millions of one-byte frames can consume disproportionate he… · Advisory content revised · 1 Nov 2026