Login Request a demo
High severity · published Jun 9, 2026
CVE-2026-40983
Micrometer gRPC server instrumentation DoS vulnerability
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MI
Micrometer · Spring
1.16.0 before 1.16.5.1; 1.15.0 before 1.15.11.1 · source: vendor
RH
Red Hat AMQ Clients · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Build of Keycloak · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Fuse 7 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat JBoss Enterprise Application Platform Expansion Pack · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat OpenShift Dev Spaces 3.30 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat build of Apache Camel - HawtIO 4 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat build of Apache Camel 4 for Quarkus 3 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat build of Apicurio Registry 3 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat build of Keycloak 26.6 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat build of Keycloak 26.6.5 · Red Hat
All versions, or not specified · source: CISA
Affected product
MI
Micrometer
Spring
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40983
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-40983
spring.io
https://spring.io/security/cve-2026-40983
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:36839
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:41951
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:50848
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:50849
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:54435
More from Micrometer
7.5
CVE-2026-40984
Micrometer HTTP server instrumentations DoS vulnerability
5.9
CVE-2026-59295
Micrometer instrumentation of Apache HttpAsyncClient DoS vulnerability
5.9
CVE-2026-59296
Micrometer StatsD and Logging meter registries line-protocol and log injection vulnerability