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Fencer Vulns
high 7.5

CVE-2026-42151 json

Prometheus Azure AD remote write OAuth client secret exposed via config API

published 2026-05-04 6 mo ago modified 2026-09-10 59 d ago also BIT-prometheus-2026-42151 , EUVD-2026-27089 , GHSA-wg65-39gg-5wfj , GO-2026-5710

cvss
7.5
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 29%
public exploits
0
none known

Summary

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the client_secret field in the Azure AD remote write OAuth configuration (storage/remote/azuread) was typed as string instead of Secret. Prometheus redacts fields of type Secret when serving the configuration via the /-/config HTTP API endpoint. Because the field was a plain string, the Azure OAuth client secret was exposed in plaintext to any user or process with access to that endpoint. This issue has been patched in versions 3.5.3 and 3.11.3.

Patch / fix

  • go github.com/prometheus/prometheus 0.311.3
  • bitnami prometheus 0.305.3, 0.311.3, 3.5.3, 3.11.3
  • Red Hat Red Hat Enterprise Linux 10 0:0.152.1-1.el10_2
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:0.152.1-1.el10_0
  • Red Hat Red Hat Enterprise Linux 9 0:0.152.1-1.el9_8
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:0.152.1-1.el9_4
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:0.152.1-1.el9_6
  • Red Hat RHEM 1.0 for RHEL 9 0:1.0.3-1.el9em
  • Red Hat RHEM 1.1 for RHEL 10 0:1.1.3-1.el10em
  • Red Hat RHEM 1.1 for RHEL 9 0:1.1.3-1.el9em
  • Red Hat Logging for Red Hat OpenShift 6 1785418852, 1785418855, 1785418915
  • Red Hat Logging for Red Hat OpenShift 6.2 1784747815, 1784747816, 1784747884
  • Red Hat Logging Subsystem for Red Hat OpenShift 6.5 1786645109, 1786645114, 1786645138
  • Red Hat Multicluster Global Hub 1.4.5 1784060681
  • Red Hat Multicluster Global Hub 1.6.5 1784561376
  • Red Hat Multicluster Global Hub 1.7.0 1784906628, 1785442872
  • Red Hat OpenShift File Integrity Operator - FIO 1 1786439449
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11 1787260378, 1787261499, 1787295854, 1787295886, 1787681481, 1787682942, 1787686252, 1787689380
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 1787259108, 1787259281, 1787259294, 1787259314, 1787263757, 1787263765, 1787263795, 1787263834
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 1786976960, 1786976997, 1786979861, 1786979923, 1786979987, 1787147621, 1787147625, 1787147638, 1787147639, 1787147659, 1787645355
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15 1786547818, 1786547849, 1786547911, 1787238569, 1787613736
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 1786908350, 1786908427, 1786909036, 1786909099, 1786909114, 1787222481, 1787222490, 1787222491, 1787233432, 1787645431
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 1787229601, 1787229605, 1787229716, 1787230030, 1787230235, 1787230287, 1787314818, 1787316467, 1787324110, 1787324111, 1787324118, 1787324123, 1787324126
  • Red Hat Red Hat Edge Manager 1.0 1783502022, 1783502023, 1783502025, 1783502029, 1783502401, 1783502403, 1783502445, 1783502465, 1783502494
  • Red Hat Red Hat Edge Manager 1.1 1784126762, 1784126774, 1784126780, 1784126832, 1784127762, 1784127787, 1784127791, 1784128388, 1784128860, 1784194144, 1784194188, 1784194309, 1784194347, 1784194353, 1784194638, 1784194653, 1784194971, 1784194980, 1784195620, 1784196588
  • Red Hat Red Hat Hardened Images 0.153.0-1.hum1, 2.19.0-1.hum1
  • Red Hat Red Hat multicluster global hub 1.5.3 1784562060
  • Red Hat Red Hat OpenShift Container Platform 4.20 1788206652
  • Red Hat Red Hat OpenShift Container Platform 4.21 1787559577
  • Red Hat Red Hat OpenShift Container Platform 4.22 1784125078, 1787573491
  • prometheus Debian 14 3.5.3+ds1-1

debian advisories DEBIAN-CVE-2026-42151

  • flightctl edge manager 1.1 1.1.3-1.el10em
  • flightctl edge manager 1.1 1.1.3-1.el9em
  • flightctl-cli edge manager 1.1 1.1.3-1.el10em
  • flightctl-cli edge manager 1.1 1.1.3-1.el9em
  • flightctl-agent edge manager 1.1 1.1.3-1.el10em
  • flightctl-agent edge manager 1.1 1.1.3-1.el9em
  • flightctl edge manager 1.0 1.0.3-1.el9em
  • flightctl-cli edge manager 1.0 1.0.3-1.el9em

red hat advisories RHSA-2026:53415RHSA-2026:53412RHSA-2026:53413RHSA-2026:41019RHSA-2026:36796RHSA-2026:34359

  • uyuni-tools Multi-Linux Manager Server Extension for SLE 5.1, Multi-Linux Manager Proxy Extension for SLE 5.1 5.1.29-150700.3.26.1
  • suse-multi-linux-manager-5.1-s390x-server-image Multi-Linux Manager Server Extension for SLE 5.1 5.1.4-8.20.34
  • suse-multi-linux-manager-5.1-x86_64-server-image Multi-Linux Manager Server Extension for SLE 5.1 5.1.4-8.20.34
  • suse-multi-linux-manager-5.1-aarch64-server-image Multi-Linux Manager Server Extension for SLE 5.1 5.1.4-8.20.34
  • suse-multi-linux-manager-5.1-ppc64le-server-image Multi-Linux Manager Server Extension for SLE 5.1 5.1.4-8.20.34
  • suse-multi-linux-manager-5.1-s390x-proxy-ssh-image Multi-Linux Manager Proxy Extension for SLE 5.1 5.1.4-8.20.12
  • suse-multi-linux-manager-5.1-x86_64-proxy-ssh-image Multi-Linux Manager Proxy Extension for SLE 5.1 5.1.4-8.20.12
  • suse-multi-linux-manager-5.1-aarch64-proxy-ssh-image Multi-Linux Manager Proxy Extension for SLE 5.1 5.1.4-8.20.12

suse advisories SUSE-SU-2026:2774-1SUSE-SU-2026:2768-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
  • golang-github-prometheus-prometheus openSUSE Tumbleweed 3.11.3-1.1

opensuse advisories openSUSE-SU-2026:21483-1openSUSE-SU-2026:10676-1

  • opentelemetry-collector AlmaLinux 10 0.152.1-1.el10_2
  • opentelemetry-collector AlmaLinux 9 0.152.1-1.el9_8

almalinux advisories ALSA-2026:34357ALSA-2026:34359

  • opentelemetry-collector Rocky Linux 10 0.152.1-1.el10_2
  • opentelemetry-collector Rocky Linux 9 0.152.1-1.el9_8

rocky linux advisories RLSA-2026:34357RLSA-2026:34359

  • prometheus Alpine 3.24, Alpine 3.23 3.5.3-r0

alpine advisories ALPINE-CVE-2026-42151

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • telegraf Azure Linux 3.0 1.31.0-22

azure linux advisories AZL-86610

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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-2026-42151 updated cvss 7.5

github.com/prometheus/prometheus: Prometheus: Information disclosure of Azure OAuth client secret via config API

  • Red Hat File Integrity Operator compliance/openshift-file-integrity-operator-bundle
    affected: no fix available
  • Red Hat Ceph Storage 5 rhceph/rhceph-5-dashboard-rhel8 Red Hat Ceph Storage 6 rhceph/rhceph-promtail-rhel9, rhceph/rhceph-6-dashboard-rhel9 Red Hat Ceph Storage 7 rhceph/grafana-rhel9, rhceph/rhceph-promtail-rhel9 Red Hat Ceph Storage 8 rhceph/grafana-rhel9, rhceph/rhceph-promtail-rhel9 Red Hat Ceph Storage 9 rhceph/grafana-rhel10
    affected: no fix available “Fix deferred”
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-llm-d-routing-sidecar-rhel9, rhoai/odh-llm-d-inference-scheduler-rhel9
    affected: no fix available
  • Red Hat OpenShift Container Platform 4 microshift, microshift-olm, microshift-sriov, microshift-multus, microshift-selinux, microshift-greenboot, +18 more Red Hat OpenShift Container Platform 5 microshift, openshift5/ose-telemeter-rhel9, openshift5/ose-prometheus-rhel9, openshift5/microshift-bootc-rhel9, openshift5/kube-metrics-server-rhel9, openshift5/ose-cluster-monitoring-rhel9-operator
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift distributed tracing 3 rhosdt/tempo-rhel9, rhosdt/tempo-query-rhel9, rhosdt/tempo-gateway-rhel9, rhosdt/tempo-gateway-opa-rhel9, rhosdt/opentelemetry-rhel9-operator, rhosdt/opentelemetry-collector-rhel9, +1 more Red Hat OpenShift GitOps openshift-gitops-1/argocd-rhel8, openshift-gitops-1/argocd-rhel9
    affected: no fix available
  • Red Hat Logging Subsystem for Red Hat OpenShift 6.0 openshift-logging/logging-loki-rhel9 1791500729, openshift-logging/loki-rhel9-operator 1785418915, openshift-logging/opa-openshift-rhel9 1785418852, openshift-logging/lokistack-gateway-rhel9 1785418855
    fixed: vendor fix RHSA-2026:83013
  • Red Hat Logging Subsystem for Red Hat OpenShift 6.2 openshift-logging/loki-rhel9-operator 1784747884, openshift-logging/opa-openshift-rhel9 1784747815, openshift-logging/lokistack-gateway-rhel9 1784747816
    fixed: vendor fix RHSA-2026:47952
  • Red Hat Logging Subsystem for Red Hat OpenShift 6.4 openshift-logging/logging-loki-rhel9 1790704601, openshift-logging/loki-rhel9-operator 1790704426, openshift-logging/opa-openshift-rhel9 1790704462, openshift-logging/lokistack-gateway-rhel9 1790704519
    fixed: vendor fix RHSA-2026:77639
show 26 more
  • Red Hat Logging Subsystem for Red Hat OpenShift 6.5 openshift-logging/logging-loki-rhel9 1789736915, openshift-logging/loki-rhel9-operator 1786645138, openshift-logging/opa-openshift-rhel9 1786645109, openshift-logging/lokistack-gateway-rhel9 1786645114
    fixed: vendor fix RHSA-2026:70870
  • Red Hat Multicluster Global Hub 1.4.9 multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1784060681
    fixed: vendor fix RHSA-2026:41030
  • Red Hat Multicluster Global Hub 1.5.8 multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1784562060
    fixed: vendor fix RHSA-2026:42852
  • Red Hat Multicluster Global Hub 1.6.6 multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1784561376
    fixed: vendor fix RHSA-2026:44622
  • Red Hat Multicluster Global Hub 1.7.4 multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1784906628, multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1785442872
    fixed: vendor fix RHSA-2026:47149
  • Red Hat OpenShift File Integrity Operator - FIO 1 compliance/openshift-file-integrity-rhel8-operator 1786439449
    fixed: vendor fix RHSA-2026:54288
  • Red Hat Advanced Cluster Management for Kubernetes 2.11 rhacm2/prometheus-rhel9 1787261499, rhacm2/acm-grafana-rhel9 1788559869, rhacm2/acm-prometheus-rhel9 1787682942, rhacm2/rbac-query-proxy-rhel9 1787689380, rhacm2/metrics-collector-rhel9 1787295886, rhacm2/grafana-dashboard-loader-rhel9 1787686252, +3 more
    fixed: vendor fix RHSA-2026:67538
  • Red Hat Advanced Cluster Management for Kubernetes 2.13 rhacm2/prometheus-rhel9 1787263757, rhacm2/acm-grafana-rhel9 1788954486, rhacm2/acm-prometheus-rhel9 1787263795, rhacm2/rbac-query-proxy-rhel9 1787263834, rhacm2/metrics-collector-rhel9 1787259281, rhacm2/thanos-receive-controller-rhel9 1790177917, +4 more
    fixed: vendor fix RHSA-2026:67540
  • Red Hat Advanced Cluster Management for Kubernetes 2.14 rhacm2/prometheus-rhel9 1786976997, rhacm2/acm-grafana-rhel9 1787645355, rhacm2/acm-prometheus-rhel9 1786979923, rhacm2/rbac-query-proxy-rhel9 1787147621, rhacm2/metrics-collector-rhel9 1787147625, rhacm2/grafana-dashboard-loader-rhel9 1787147659, +5 more
    fixed: vendor fix RHSA-2026:60388
  • Red Hat Advanced Cluster Management for Kubernetes 2.15 rhacm2/prometheus-rhel9 1786547911, rhacm2/acm-prometheus-rhel9 1786547849, rhacm2/endpoint-monitoring-rhel9-operator 1787238569, rhacm2/acm-prometheus-config-reloader-rhel9 1786547818, rhacm2/multicluster-observability-rhel9-operator 1787613736
    fixed: vendor fix RHSA-2026:54427
  • Red Hat Advanced Cluster Management for Kubernetes 2.16 rhacm2/prometheus-rhel9 1786909036, rhacm2/acm-grafana-rhel9 1787645431, rhacm2/acm-prometheus-rhel9 1786909099, rhacm2/rbac-query-proxy-rhel9 1787222481, rhacm2/metrics-collector-rhel9 1787222490, rhacm2/obo-prometheus-rhel9-operator 1787233432, +5 more
    fixed: vendor fix RHSA-2026:60391
  • Red Hat Advanced Cluster Management for Kubernetes 2.17 rhacm2/thanos-rhel9 1787229716, rhacm2/prometheus-rhel9 1787230287, rhacm2/acm-grafana-rhel9 1787316467, rhacm2/observatorium-rhel9 1787229605, rhacm2/acm-prometheus-rhel9 1787229601, rhacm2/rbac-query-proxy-rhel9 1787324111, +7 more
    fixed: vendor fix RHSA-2026:60386
  • Red Hat Edge Manager 1.0 rhem/flightctl-api-rhel9 1783502025, rhem/flightctl-worker-rhel9 1783502445, rhem/flightctl-db-setup-rhel9 1783502401, rhem/flightctl-periodic-rhel9 1783502022, rhem/flightctl-pam-issuer-rhel9 1783502403, rhem/flightctl-cli-artifacts-rhel9 1783502494, +4 more
    fixed: vendor fix RHSA-2026:36651
  • Red Hat Edge Manager 1.1 rhem/flightctl-api-rhel9 1784126780, rhem/flightctl-api-rhel10 1784196588, rhem/flightctl-worker-rhel9 1784127775, rhem/flightctl-worker-rhel10 1784194971, rhem/flightctl-db-setup-rhel9 1784126762, rhem/flightctl-periodic-rhel9 1784127791, +18 more
    fixed: vendor fix RHSA-2026:40945
  • Red Hat Enterprise Linux AppStream (v. 9) opentelemetry-collector 0.152.1-1.el9_8
    fixed: vendor fix RHSA-2026:34359
  • Red Hat Enterprise Linux AppStream (v. 10) opentelemetry-collector 0.152.1-1.el10_2
    fixed: vendor fix RHSA-2026:34357
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) opentelemetry-collector 0.152.1-1.el9_4
    fixed: vendor fix RHSA-2026:53412
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) opentelemetry-collector 0.152.1-1.el10_0
    fixed: vendor fix RHSA-2026:53413
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) opentelemetry-collector 0.152.1-1.el9_6
    fixed: vendor fix RHSA-2026:53415
  • Red Hat Hardened Images jaeger 2.19.0-1.hum1, opentelemetry-collector 0.153.0-1.hum1, opentelemetry-collector-contrib 0.153.0-1.hum1
    fixed: vendor fix RHSA-2026:25039
  • Red Hat OpenShift Container Platform 4.16 openshift4/ose-prometheus-rhel9 1792891449
    fixed: vendor fix RHSA-2026:89715
  • Red Hat OpenShift Container Platform 4.18 openshift4/ose-prometheus-rhel9 1790829400
    fixed: vendor fix RHSA-2026:79039
  • Red Hat OpenShift Container Platform 4.19 openshift4/ose-prometheus-rhel9 1789886407
    fixed: vendor fix RHSA-2026:71447
  • Red Hat OpenShift Container Platform 4.20 openshift4/ose-prometheus-rhel9 1788206652
    fixed: vendor fix RHSA-2026:63103
  • Red Hat OpenShift Container Platform 4.21 openshift4/ose-prometheus-rhel9 1787559577
    fixed: vendor fix RHSA-2026:60477
  • Red Hat OpenShift Container Platform 4.22 openshift4/ose-prometheus-rhel9 1787573491, openshift4/ose-cluster-monitoring-rhel9-operator 1784125078
    fixed: vendor fix RHSA-2026:40768

12 more fixed, 55 more not affected in the full advisory

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
yes
Technical impact
partial
Assessed
6 mo ago

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/prometheus/prometheus
>=0.45.2, <0.311.3
0.311.3
bitnami prometheus
<0.305.3
>=0.306.0, <0.311.3
>=1.0.0, <3.5.3
>=3.6.0, <3.11.3
0.305.3
0.311.3
3.5.3
3.11.3

Affected products

  • prometheus prometheus
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
  • Red Hat RHEM 1.0 for RHEL 9
  • Red Hat RHEM 1.1 for RHEL 10
  • Red Hat RHEM 1.1 for RHEL 9
  • Red Hat Logging for Red Hat OpenShift 6
  • Red Hat Logging for Red Hat OpenShift 6.2
  • Red Hat Logging Subsystem for Red Hat OpenShift 6.5
  • Red Hat Multicluster Global Hub 1.4.5
  • Red Hat Multicluster Global Hub 1.6.5
  • Red Hat Multicluster Global Hub 1.7.0
  • Red Hat OpenShift File Integrity Operator - FIO 1
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17
  • Red Hat Red Hat Edge Manager 1.0
  • Red Hat Red Hat Edge Manager 1.1
  • Red Hat Red Hat Hardened Images
  • Red Hat Red Hat multicluster global hub 1.5.3
  • Red Hat Red Hat OpenShift Container Platform 4.20
  • Red Hat Red Hat OpenShift Container Platform 4.21
  • Red Hat Red Hat OpenShift Container Platform 4.22
  • Red Hat Red Hat Quay 3.10
  • Red Hat Red Hat Quay 3.12
  • Red Hat Red Hat Quay 3.15
  • Red Hat Red Hat Quay 3.16
  • Red Hat Red Hat Quay 3.9
  • Red Hat Red Hat Trusted Artifact Signer 1.3
  • Red Hat Red Hat Trusted Artifact Signer 1.4
  • Red Hat Custom Metric Autoscaler operator for Red Hat Openshift
  • Red Hat File Integrity Operator
  • Red Hat Logging Subsystem for Red Hat OpenShift
  • Red Hat Network Observability Operator
  • Red Hat OpenShift Lightspeed
  • Red Hat OpenShift Service Mesh 2
  • Red Hat OpenShift Service Mesh 3
  • Red Hat Red Hat Ceph Storage 5
  • Red Hat Red Hat Ceph Storage 6
  • Red Hat Red Hat Ceph Storage 7
  • Red Hat Red Hat Ceph Storage 8
  • Red Hat Red Hat Ceph Storage 9
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-312 Cleartext Storage of Sensitive Information
  • CWE-256 Plaintext Storage of a Password

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Support weird prometheus go-module version nonsense.