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No exploitation reportedFix available

CVE-2026-40983

No exploitation reported by the sources we read.

  • Published2026-06-09
  • Fixed in1.16.6 · 1.15.12
  • WeaknessCWE-400 · CWE-770

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-06-0905:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-40983?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-40983?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV
micrometer-core
BranchAffectedFixed in
1.16≥ 1.16.0, < 1.16.61.16.6
1.15≥ 1.15.0, < 1.15.121.15.12

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • RHSA-2026:69459 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: AMQ Clients 2026.Q3

  • RHSA-2026:66488 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AMQ Broker 7.14.1 release and security update

  • RHSA-2026:62260 Red Hat Product Security8 products fixed

    Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.30.0 Release.

  • RHSA-2026:50849 Red Hat Product Security9 products fixed

    Red Hat Security Advisory: Red Hat build of Keycloak 26.6.5 Images Security Update

  • RHSA-2026:50848 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat build of Keycloak 26.6.5 Security Update

  • RHSA-2026:41951 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Data Grid 8.6.2 security update

2 more advisories

Full record on NVD

Fix

  1. Update micrometer-core to 1.16.6 · 1.15.12
  2. Vendor fix Red Hat Product Security RHSA-2026:69459 · 1 productBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  3. Vendor fix Red Hat Product Security RHSA-2026:66488 · 1 productBefore applying the update, back up your existing installation, including all applications, configuration files, databases and database settings. The References section of this erratum contains a download link (you must log in to download the update).
  4. Vendor fix Red Hat Product Security RHSA-2026:62260 · 8 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  5. Vendor fix Red Hat Product Security RHSA-2026:50849 · 9 productsBefore applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.
  6. Vendor fix Red Hat Product Security RHSA-2026:41951 · 1 productBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  7. Vendor fix Red Hat Product Security RHSA-2026:36839 · 1 productBefore applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. The References section of this erratum contains a download link (you must log in to download the update).

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionnone2026-06-09
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.17.5read 2026-10-23
  • CNAweakness (CWE)CWE-400, CWE-770read 2026-10-23
  • FIRST EPSSEPSS score0.8 %2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2026-06-09
Last Modified
2026-09-14
NVD status
Awaiting Analysis

Frequently asked questions

What is CVE-2026-40983?

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.

Is CVE-2026-40983 actively exploited?

Active exploitation of CVE-2026-40983 has not been confirmed. Its EPSS score was 0.8% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-40983?

CVE-2026-40983 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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