CVE-2026-34388 Fleet vulnerable to Denial of Service via unhandled gRPC log type in launcher endpoint

Fleet is open source device management software. Prior to 4.81.0, a denial-of-service vulnerability in Fleet's gRPC Launcher endpoint allows an authenticated host to crash the entire Fleet server process by sending an unexpected log type value. The server terminates immediately, disrupting all...

GO-2026-4762 Authorization bypass in gRPC-Go via missing leading slash in :path in google.golang.org/grpc

Authorization bypass in gRPC-Go via missing leading slash in :path in google.golang.org/grpc...

SUSE CVE-2026-33413

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted...

PT-2026-28629

Name of the Vulnerable Software and Affected Versions Fleet versions prior to 4.81.0 Description Fleet, an open-source device management software, contains a flaw in its gRPC Launcher endpoint. An authenticated host can exploit this to cause a denial-of-service condition, leading to the terminati...

CVE-2026-33413

A flaw was found in etcd, a distributed key-value store. Unauthorized users can bypass authentication or authorization checks when the gRPC API is exposed to untrusted clients. This allows them to access sensitive cluster topology information, disrupt operations through alarms, interfere with lea...

CVE-2026-4064

Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before 2026.1.4 allows an authenticated user with any valid token to bypass role-based access controls and perform privileged operations — including reading sensitive data, creating or deleting resources, and...

CVE-2026-26330

Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, At the rate limit filter, if the response phase limit with applyonstreamdone in the rate limit configuration is enabled and the response phase limit request fails directly, it may crash Envoy. Whe...

CVE-2026-23669

Use after free in RPC Runtime allows an authorized attacker to execute code over a network...

DEBIAN-CVE-2026-33413

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted...

CVE-2026-33413

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted...

CVE-2026-33413 etcd: Authorization bypasses in multiple APIs

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted...

CVE-2026-33413 etcd: Authorization bypasses in multiple APIs

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted...

CVE-2026-4747 Remote code execution via RPCSEC_GSS packet validation

Each RPCSECGSS data packet is validated by a routine which checks a signature in the packet. This routine copies a portion of the packet into a stack buffer, but fails to ensure that the buffer is sufficiently large, and a malicious client can trigger a stack overflow. Notably, this does not...

CVE-2026-4747

CVE-2026-4747 is a FreeBSD vulnerability in the RPCSEC_GSS implementation (kgssapi.ko) where svc_rpc_gss_validate() copies attacker-controlled data into a 128-byte stack buffer without enforcing size, enabling a 304-byte overflow when credential bodies up to 400 bytes are supplied. This can lead ...

FreeBSD Security Advisory - FreeBSD-SA-26:08.rpcsec_gss

FreeBSD Security Advisory - Each RPCSECGSS data packet is validated by a routine which checks a signature in the packet. This routine copies a portion of the packet into a stack buffer, but fails to ensure that the buffer is sufficiently large, and a malicious client can trigger a stack overflow...

Linux Distros Unpatched Vulnerability : CVE-2026-33413

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass...

Improper Check for Unusual or Exceptional Conditions

Overview @grackle-ai/server is a Grackle server orchestrator — spawns and wires core gRPC, web-server HTTP, MCP, and PowerLine Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions in the JSON.parse process within the gRPC service adapter...

@grackle-ai/server JSON.parse lacks try-catch logic in its gRPC Service AdapterConfig Handling

Impact JSON.parseenv.adapterConfig is called without error handling in three locations within the gRPC service. While the data originates from the server's own SQLite database and should always be valid JSON, database corruption, migration errors, or unexpected state could cause an unhandled...

FreeBSD -- Remote code execution via RPCSEC_GSS packet validation

Problem Description: Each RPCSECGSS data packet is validated by a routine which checks a signature in the packet. This routine copies a portion of the packet into a stack buffer, but fails to ensure that the buffer is sufficiently large, and a malicious client can trigger a stack overflow. Notabl...

UBUNTU-CVE-2026-33186

gRPC-Go is the Go language implementation of gRPC. Versions prior to 1.79.3 have an authorization bypass resulting from improper input validation of the HTTP/2 :path pseudo-header. The gRPC-Go server was too lenient in its routing logic, accepting requests where the :path omitted the mandatory...