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Fencer Vulns
medium 5.4

CVE-2026-93685 json

Multicluster-observability-addon: multicluster-observability-addon: possible unauthenticated debug/metrics endpoint via cmdfactory.newcontrollercommandconfig (confirmed exposed by engineering)

published 2026-09-18 52 d ago modified 2026-09-21 48 d ago also EUVD-2026-82981

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

A flaw was found in the multicluster-observability-addon. A remote attacker can access a debug endpoint without authentication, due to a misconfiguration in the underlying addon-framework library. This allows for the disclosure of sensitive operational information, such as goroutine, heap, and command-line details, after completing a basic encrypted connection. This vulnerability does not enable direct remote code execution.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-93685 updated cvss 5.4

multicluster-observability-addon: multicluster-observability-addon: possible unauthenticated debug/metrics endpoint via cmdfactory.NewControllerCommandConfig (confirmed exposed by engineering)

  • Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/acm-multicluster-observability-addon-rhel9, redhat-user-workloads/crt-redhat-acm-tenant/multicluster-observability-addon-acm-213
    affected: workaround, no fix available, no fix planned “Out of support scope”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
48 d ago

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Affected products

  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.