GHSA-VP29-5652-4FW9 CoreDNS has TSIG authentication bypass on gRPC and QUIC transports

Summary The gRPC, QUIC, DoH, and DoH3 transports in CoreDNS incorrectly handle TSIG authentication. For gRPC and QUIC, CoreDNS checks whether the TSIG key name exists in the config, but does not actually verify the TSIG HMAC. If the key name matches, tsigStatus remains nil and the tsig plugin...

CoreDNS has TSIG authentication bypass on DoT, DoH, DoH3, DoQ, and gRPC

Summary CoreDNS' tsig plugin can be bypassed on non-plain-DNS transports because it trusts the transport writer's TsigStatus instead of performing verification itself. In the attached PoC, plain DNS/TCP correctly rejects an invalid TSIG NOTAUTH, while the same invalid-TSIG request is accepted ove...

Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in google.golang.org/grpc-v1.62.0

Summary IBM Watson Discovery Cartridge affected by vulnerability in google.golang.org/grpc-v1.62.0 Vulnerability Details CVEID:CVE-2026-33186 DESCRIPTION: gRPC-Go is the Go language implementation of gRPC. Versions prior to 1.79.3 have an authorization bypass resulting from improper input...

Spring gRPC SecurityContext leaks across requests upon authorization failure

When an authenticated user is denied access to a gRPC method, their authenticated identity remains bound to the gRPC worker thread and can be inherited by a subsequent unauthenticated request on the same thread. This may allow the subsequent user to gain escalated permissions. Affected versions:...

CVE-2026-40969

The raw message of every server-side AuthenticationException is returned to the unauthenticated remote caller in the gRPC status description. This allows an attacker to obtain information about the authentication failure, which may be useful for further attacks. Affected versions: Spring gRPC:...

CVE-2026-40968 Spring gRPC SecurityContext leaks across requests on authorization failure

When an authenticated user is denied access to a gRPC method, their authenticated identity remains bound to the gRPC worker thread and can be inherited by a subsequent unauthenticated request on the same thread. This may allow the subsequent user to gain escalated permissions. Affected versions:...

CVE-2026-40968

CVE-2026-40968 affects Spring gRPC 1.0.0–1.0.2 (fixed in 1.0.3; older/unsupported versions also affected). The issue: when an authenticated user is denied access to a gRPC method, the user’s authenticated identity remains bound to a gRPC worker thread and can be inherited by a subsequent unauthen...

io.crossplane.compositefunctions:crossplane-function-example (>=1.20-alpha <=2.0.5), io.crossplane.compositefunctions:crossplane-function-springboot-starter (>=1.20-alpha <=2.0.5) +19 more potentially affected by CVE-2026-40969 via org.springframework.grpc:spring-grpc-core (>=1.0.0-RC1 <=1.0.2)

org.springframework.grpc:spring-grpc-core MAVEN version =1.0.0-RC1, =1.20-alpha, =1.20-alpha, =2026.01, =0.8.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =1.0.0, =1.0.0, =1.0.2 - org.springframew...

io.crossplane.compositefunctions:crossplane-function-example (>=1.20-alpha <=2.0.5), io.crossplane.compositefunctions:crossplane-function-springboot-starter (>=1.20-alpha <=2.0.5) +19 more potentially affected by CVE-2026-40968 via org.springframework.grpc:spring-grpc-core (>=1.0.0-RC1 <=1.0.2)

org.springframework.grpc:spring-grpc-core MAVEN version =1.0.0-RC1, =1.20-alpha, =1.20-alpha, =2026.01, =0.8.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =6.0.0, =1.0.0, =1.0.0, =1.0.2 - org.springframew...

Generation of Error Message Containing Sensitive Information

Overview Affected versions of this package are vulnerable to Generation of Error Message Containing Sensitive Information due to the raw message of every server-side AuthenticationException being returned to the unauthenticated remote caller in the gRPC status description. This allows an attacker...

Vmware Spring gRPC 安全漏洞

Vmware Spring gRPC is an extension component for Spring application development developed by Vmware, a company in the United States. Versions 1.0.0 to 1.0.2 of Vmware Spring gRPC contain security vulnerabilities. These vulnerabilities arise when authenticated users are denied access to gRPC...

google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation

A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 :path pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed :path that omits the mandato...

google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation

A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 :path pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed :path that omits the mandato...

RHEL 9 : rhc (RHSA-2026:10706)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:10706 advisory. rhc is a client tool and daemon that connects the system to Red Hat hosted services enabling system and subscription management. Security Fixes:...

RHEL 9 : rhc (RHSA-2026:10705)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:10705 advisory. rhc is a client tool and daemon that connects the system to Red Hat hosted services enabling system and subscription management. Security Fixes:...

CVE-2026-25874

LeRobot through 0.5.1 contains an unsafe deserialization vulnerability in the async inference pipeline where pickle.loads is used to deserialize data received over unauthenticated gRPC channels without TLS in the policy server and robot client components. An unauthenticated network-reachable...

CVE-2026-25874 LeRobot Unsafe Deserialization Remote Code Execution via gRPC

LeRobot through 0.5.1 contains an unsafe deserialization vulnerability in the async inference pipeline where pickle.loads is used to deserialize data received over unauthenticated gRPC channels without TLS in the policy server and robot client components. An unauthenticated network-reachable...

google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation

A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 :path pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed :path that omits the mandato...

Important: Red Hat Security Advisory: rhc security update

An update for rhc is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the C...

CVE-2026-40891

OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry over gRPC using the OpenTelemetry Protocol OTLP, the exporter may parse a server-provided grpc-status-details-bin trailer during retry handling. Prior to the fix, a malformed trailer could...