CVE-2026-84445

gRPC-Go is the Go language implementation of gRPC. Prior to 1.82.2 and 1.83.2, servers created with xds.NewGRPCServer allow internal/transport/http2server.go to accept an RPC containing neither the :authority header nor the Host header, while RouteAndProcess in internal/xds/server/routing.go...

CVE-2026-84445 gRPC-Go: Denial of Service (DoS) via crash due to missing `:authority` and `Host` headers in the xDS servers

gRPC-Go is the Go language implementation of gRPC. Prior to 1.82.2 and 1.83.2, servers created with xds.NewGRPCServer allow internal/transport/http2server.go to accept an RPC containing neither the :authority header nor the Host header, while RouteAndProcess in internal/xds/server/routing.go...

CVE-2026-84445

CVE-2026-84445 affects gRPC-Go prior to versions 1.82.2 and 1.83.2 . Servers created via xds.NewGRPCServer() accept RPCs containing neither the :authority nor Host header. The RouteAndProcess function in internal/xds/server/routing.go then assumes an authority value exists and indexes an empty sl...

CVE-2026-84445 gRPC-Go: Denial of Service (DoS) via crash due to missing `:authority` and `Host` headers in the xDS servers

gRPC-Go is the Go language implementation of gRPC. Prior to 1.82.2 and 1.83.2, servers created with xds.NewGRPCServer allow internal/transport/http2server.go to accept an RPC containing neither the :authority header nor the Host header, while RouteAndProcess in internal/xds/server/routing.go...

CLEANSTART-2026-TP13569 gRPC-Go is the Go language implementation of gRPC

Multiple security vulnerabilities affect the opentelemetry-collector-contrib package. gRPC-Go is the Go language implementation of gRPC. See references for individual vulnerability details...

Uncaught Exception

Overview Affected versions of this package are vulnerable to Uncaught Exception through the HTTP/2 header processing path in internal/transport/http2server.go and internal/xds/server/routing.go. An attacker can crash the server by sending a gRPC request that omits both the :authority and Host...

GHSA-2V4P-QF9Q-27WJ gRPC-Go xDS servers: Denial of Service (DoS) via crash due to missing `:authority` and `Host` headers

A vulnerability exists in gRPC-Go servers configured with xds.NewGRPCServer where a crafted request missing both :authority and Host headers can cause a server panic, resulting in a Denial of Service DoS. Servers built with xds.NewGRPCServer install an xDS routing interceptor on every RPC. This...

Uncaught Exception

Overview Affected versions of this package are vulnerable to Uncaught Exception through the HTTP/2 header processing path in internal/transport/http2server.go and internal/xds/server/routing.go. An attacker can crash the server by sending a gRPC request that omits both the :authority and Host...

gRPC-Go xDS servers: Denial of Service (DoS) via crash due to missing `:authority` and `Host` headers

A vulnerability exists in gRPC-Go servers configured with xds.NewGRPCServer where a crafted request missing both :authority and Host headers can cause a server panic, resulting in a Denial of Service DoS. Servers built with xds.NewGRPCServer install an xDS routing interceptor on every RPC. This...

EUVD-2026-69419

gRPC-Go: xDS RBAC HTTP Filter bypass via mixed-case Header Matching and gRFC A41 validation evasion...

GHSA-QC2Q-P7WX-3PX3 gRPC-Go: xDS RBAC HTTP Filter bypass via mixed-case Header Matching and gRFC A41 validation evasion

Summary A vulnerability in the xDS RBAC HTTP filter implementation in grpc-go allows remote attackers to bypass authorization policies specifically DENY rules by using mixed-case or canonical-case header matchers e.g., X-Role instead of x-role. Additionally, the safety guards introduced by gRFC A...

CLEANSTART-2026-FT20664 gRPC-Go is the Go language implementation of gRPC

Multiple security vulnerabilities affect the step package. gRPC-Go is the Go language implementation of gRPC. See references for individual vulnerability details...

CLEANSTART-2026-AJ39907 gRPC-Go is the Go language implementation of gRPC

Multiple security vulnerabilities affect the step package. gRPC-Go is the Go language implementation of gRPC. See references for individual vulnerability details...

CLEANSTART-2026-AE16267 gRPC-Go is the Go language implementation of gRPC

Multiple security vulnerabilities affect the step package. gRPC-Go is the Go language implementation of gRPC. See references for individual vulnerability details...

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

...

The vulnerability in the `internal/transport/transport.go` file of the gRPC-Go framework for remote procedure calls in the Go programming language allows a attacker to cause a service failure.

The vulnerability in the internal/transport/transport.go file of the Go-based gRPC-Go framework for remote procedure calls involves an uncontrolled resource consumption. Exploiting this vulnerability could allow a malicious actor to cause service failures...

SUSE CVE-2026-84303

gRPC-Go is the Go language implementation of gRPC. Prior to 1.83.1, the xDS RBAC HTTP filter in internal/xds/httpfilter/rbac/rbac.go does not lowercase header matcher names in normalizeHeaderMatcher even though incoming metadata keys are lowercase. A DENY policy using a mixed-case name such as...

SUSE CVE-2026-84304

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 heap memory even when payload bytes remain within connectio...

Linux Distros Unpatched Vulnerability : CVE-2026-84304

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 recvM...

Linux Distros Unpatched Vulnerability : CVE-2026-84303

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - gRPC-Go is the Go language implementation of gRPC. Prior to 1.83.1, the xDS RBAC HTTP filter in internal/xds/httpfilter/rbac/rbac.go does not lowercase header...