Micrometer 1.15/1.16 gRPC DoS via crafted requests
CVE-2026-40983 Published on June 9, 2026

Micrometer gRPC server instrumentation DoS vulnerability
In Micrometer, it is possible for a user to provide specially crafted gRPC requests that may cause a denial-of-service (DoS) condition. Affected versions: Micrometer 1.16.0 through 1.16.5; 1.15.0 through 1.15.11.

NVD

Vulnerability Analysis

CVE-2026-40983 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Types

What is a Resource Exhaustion Vulnerability?

The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

CVE-2026-40983 has been classified to as a Resource Exhaustion vulnerability or weakness.

Allocation of Resources Without Limits or Throttling

The software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.


Products Associated with CVE-2026-40983

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-40983 are published in these products:

VMware Spring Framework
 
Red Hat Amq Broker
 
Red Hat Amq Clients
 
Red Hat Apache Camel Hawtio
 
Red Hat Camel Quarkus
 
Red Hat Apicurio Registry
 
Red Hat Build Keycloak
 
Red Hat Quarkus
 
Red Hat Jboss Data Grid
 
Red Hat Jboss Fuse
 
Red Hat Jbosseapxp
 
Red Hat Amq Streams
 
Red Hat Camel Spring Boot
 
Red Hat Debezium
 
Red Hat Openshift Ai
 
Red Hat Openshift Devspaces
 
Red Hat Satellite
 

Affected Versions

Spring Micrometer: Red Hat AMQ Broker 7: Red Hat AMQ Clients: Red Hat build of Apache Camel - HawtIO 4: Red Hat build of Apache Camel 4 for Quarkus 3: Red Hat build of Apicurio Registry 3: Red Hat Build of Keycloak: Red Hat build of Quarkus: Red Hat Data Grid 8: Red Hat Fuse 7: Red Hat JBoss Enterprise Application Platform Expansion Pack: Red Hat streams for Apache Kafka 3: Red Hat build of Apache Camel for Spring Boot 4: Red Hat build of Debezium 3: Red Hat streams for Apache Kafka 2: Red Hat OpenShift AI (RHOAI): Red Hat OpenShift Dev Spaces: Red Hat Satellite 6:

Exploit Probability

EPSS
0.34%
Percentile
26.11%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.