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Fencer Intel
medium 4.8

CVE-2026-119566 json

Prometheus through 3.15.1 Credential Leak via remote_write Cross-Host Redirects

published 10d ago modified 5d ago also EUVD-2026-113831

cvss
4.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits
0
none known

Summary

Prometheus through 3.15.1 contains a credential leak vulnerability that allows attackers to capture Azure AD or Google IAM bearer tokens by redirecting remote_write requests to another host. Attackers controlling the remote-write endpoint or a redirecting server can return a 3xx to their host and replay the token, for example to write metrics to the victim's backend.

Patch / fix

  • golang-github-prometheus-common Debian 14 0.69.0-1

debian advisories DEBIAN-CVE-2026-119566

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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-2026-119566 updated cvss 4.8

github.com/prometheus/common: Prometheus: Information disclosure via HTTP redirects in remote write requests

  • Red Hat Ansible Automation Orchestrator 2026 ansible-automation-platform/automation-orchestrator-rhel9-operator, ansible-automation-platform/automation-orchestrator-temporal-rhel9, ansible-automation-platform/automation-orchestrator-operator-bundle
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Assisted Installer for Red Hat OpenShift Container Platform 2 rhai/assisted-installer-rhel9, rhai/assisted-installer-agent-rhel9, rhai/assisted-installer-controller-rhel9, assisted/agent-preinstall-image-builder-rhel9
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat AWS Load Balancer Operator albo/aws-load-balancer-rhel8-operator, albo/aws-load-balancer-rhel9-operator, albo/aws-load-balancer-controller-rhel8, albo/aws-load-balancer-controller-rhel9
    affected: workaround, no fix available, no fix planned “Out of support scope”
  • Red Hat Builds for Red Hat OpenShift openshift-builds/openshift-builds-waiters-rhel9, openshift-builds/openshift-builds-webhook-rhel9, openshift-builds/openshift-builds-rhel9-operator, openshift-builds/openshift-builds-waiters-rhel10, openshift-builds/openshift-builds-webhook-rhel10, openshift-builds/openshift-builds-rhel10-operator, +12 more Red Hat cert-manager Operator for Red Hat OpenShift cert-manager/cert-manager-operator-rhel9, cert-manager/jetstack-cert-manager-rhel9, cert-manager/cert-manager-istio-csr-rhel9, cert-manager/cert-manager-trust-manager-rhel9, cert-manager/jetstack-cert-manager-acmesolver-rhel9 Red Hat Compliance Operator compliance/openshift-compliance-rhel8-operator, compliance/openshift-compliance-operator-bundle, compliance/openshift-compliance-must-gather-rhel8 Red Hat Confidential Compute Attestation build-of-trustee/trustee-rhel9-operator, agent-sandbox/agent-sandbox-rhel9-operator, build-of-trustee/trustee-must-gather-rhel9, openshift-sandboxed-containers/osc-monitor-rhel9, openshift-sandboxed-containers/osc-rhel9-operator, openshift-sandboxed-containers/osc-must-gather-rhel9, +4 more Red Hat Cost Management Metrics Operator costmanagement/costmanagement-metrics-rhel9-operator Red Hat Cost Management On Premise costmanagement/costmanagement-ingress-rhel9, costmanagement/costmanagement-ros-ocp-backend-rhel9
    +4 more products
    Red Hat Cryostat 4 cryostat/cryostat-storage-rhel9, cryostat/cryostat-rhel9-operator, cryostat/cryostat-grafana-dashboard-rhel9 Red Hat Custom Metric Autoscaler operator for Red Hat Openshift custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9, custom-metrics-autoscaler/custom-metrics-autoscaler-adapter-rhel9, custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9-operator, custom-metrics-autoscaler/custom-metrics-autoscaler-admission-webhooks-rhel9, custom-metrics-autoscaler/custom-metrics-autoscaler-http-add-on-scaler-rhel9, custom-metrics-autoscaler/custom-metrics-autoscaler-http-add-on-operator-rhel9, +1 more Red Hat Deployment Validation Operator dvo/deployment-validation-rhel8-operator Red Hat DPU kit for NVIDIA dpu-kit-for-nvidia/must-gather-rhel10, dpu-kit-for-nvidia/dpf-hcp-provisioner-rhel10-operator
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Exploit Intelligence exploit-intelligence/exploit-intelligence-operator-controller-rhel9
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat External Secrets Operator for Red Hat OpenShift external-secrets-operator/external-secrets-rhel9, external-secrets-operator/external-secrets-operator-rhel9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat ExternalDNS Operator edo/external-dns-rhel8, edo/external-dns-rhel9, edo/external-dns-rhel8-operator, edo/external-dns-rhel9-operator Red Hat Fence Agents Remediation Operator workload-availability/fence-agents-remediation-rhel8-operator, workload-availability/fence-agents-remediation-rhel9-operator, workload-availability/fence-agents-remediation-operator-bundle
    affected: workaround, no fix available, no fix planned “Out of support scope”
  • Red Hat File Integrity Operator compliance/openshift-file-integrity-rhel8-operator, compliance/openshift-file-integrity-operator-bundle Red Hat Gatekeeper 3 gatekeeper/gatekeeper-rhel9, gatekeeper/gatekeeper-rhel9-operator Red Hat Helm CLI for Red Hat OpenShift helm-cli/helm-cli-rhel9 Red Hat Job Set 1 job-set/jobset-rhel9, job-set/jobset-rhel9-operator Red Hat Job Set Tech Preview job-set/jobset-rhel9, job-set/jobset-rhel9-operator, job-set/jobset-operator-bundle Red Hat Kernel Module Management Operator for Red Hat Openshift kmm/kernel-module-management-rhel9-operator, kmm/kernel-module-management-must-gather-rhel9, kmm/kernel-module-management-hub-rhel9-operator, kmm/kernel-module-management-webhook-server-rhel9
    +2 more products
    Red Hat Kube Descheduler Operator kube-descheduler-operator/descheduler-rhel9, kube-descheduler-operator/kube-descheduler-rhel9-operator Red Hat Leader Worker Set leader-worker-set/lws-rhel9, leader-worker-set/lws-rhel9-operator
    affected: workaround, no fix available “Fix deferred”
show 9 more
  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/eventrouter-rhel9, openshift-logging/logging-loki-rhel9, openshift-logging/loki-rhel9-operator, openshift-logging/opa-openshift-rhel9, openshift-logging/lokistack-gateway-rhel9, openshift-logging/cluster-logging-rhel9-operator, +1 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Logical Volume Manager Storage lvms4/topolvm-rhel8, lvms4/topolvm-rhel9, lvms4/lvms-rhel8-operator, lvms4/lvms-rhel9-operator, lvms4/lvms-operator-bundle, lvms4/lvms-must-gather-rhel8, +1 more Red Hat Machine Deletion Remediation Operator workload-availability/machine-deletion-remediation-rhel8-operator, workload-availability/machine-deletion-remediation-rhel9-operator, workload-availability/machine-deletion-remediation-operator-bundle
    affected: workaround, no fix available, no fix planned “Out of support scope”
  • Red Hat MCP Lifecycle Operator mcp-lifecycle-operator-beta/mcp-lifecycle-rhel9-operator Red Hat MCP Server for Red Hat OpenShift openshift-mcp/openshift-mcp-server-rhel9, openshift-mcp-tech-preview/openshift-mcp-server-rhel9 Red Hat Migration Toolkit for Applications 8 mta/mta-hub-rhel9, mta/mta-rhel9-operator
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-registry-rhel8, rhmtc/openshift-migration-rhel8-operator, rhmtc/openshift-migration-controller-rhel8, rhmtc/openshift-migration-log-reader-rhel8, rhmtc/openshift-migration-must-gather-rhel8
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Migration Toolkit for Virtualization migration-toolkit-virtualization/mtv-api-rhel9, migration-toolkit-virtualization/mtv-rhel9-operator, migration-toolkit-virtualization/mtv-virt-v2v-rhel9, migration-toolkit-virtualization/mtv-virt-v2v-rhel10, migration-toolkit-virtualization/mtv-controller-rhel9, migration-toolkit-virtualization/mtv-validation-rhel9, +7 more
    affected: workaround, no fix available, no fix planned “Out of support scope”
  • Red Hat Multiarch Tuning Operator multiarch-tuning/multiarch-tuning-rhel9-operator, multiarch-tuning/multiarch-tuning-operator-bundle
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Multicluster Engine for Kubernetes multicluster-engine/hive-rhel9, multicluster-engine/work-rhel9, multicluster-engine/maestro-rhel9, multicluster-engine/discovery-rhel9, multicluster-engine/placement-rhel9, multicluster-engine/must-gather-rhel9, +38 more
    affected: workaround, no fix available, no fix planned “Out of support scope”
  • Red Hat Multicluster Global Hub multicluster-globalhub/multicluster-globalhub-agent-rhel9, multicluster-globalhub/multicluster-globalhub-grafana-rhel9, multicluster-globalhub/multicluster-globalhub-manager-rhel9, multicluster-globalhub/multicluster-globalhub-rhel9-operator, multicluster-globalhub/multicluster-globalhub-postgres-exporter-rhel9 Red Hat Network Observability Operator network-observability/network-observability-cli-rhel9, network-observability/network-observability-rhel9-operator, network-observability/network-observability-ebpf-agent-rhel9, network-observability/network-observability-console-plugin-rhel9, network-observability/network-observability-flowlogs-pipeline-rhel9, network-observability/network-observability-console-plugin-pf4-rhel9, +1 more
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Node HealthCheck Operator workload-availability/node-remediation-console-rhel9, workload-availability/node-healthcheck-rhel8-operator, workload-availability/node-healthcheck-rhel9-operator, workload-availability/node-healthcheck-operator-bundle, workload-availability/node-healthcheck-must-gather-rhel8, workload-availability/node-healthcheck-must-gather-rhel9 Red Hat Node Maintenance Operator workload-availability/node-maintenance-rhel9-operator, workload-availability/node-maintenance-operator-bundle, container-native-virtualization/node-maintenance-operator Red Hat OpenShift API for Data Protection oadp/oadp-velero-rhel9, oadp/oadp-rhel9-operator, oadp/oadp-non-admin-rhel9, oadp/oadp-mustgather-rhel9, oadp/oadp-vmfr-access-rhel9, oadp/oadp-cli-binaries-rhel9, +13 more
    affected: workaround, no fix available, no fix planned “Out of support scope”

61 more affected, 1 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
no
Technical impact
partial
Assessed
5d ago

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 6.3 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CNA 3.1 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CNA 4.0 6.3 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • prometheus prometheus

Classification

Weakness
  • CWE-522 Insufficiently Protected Credentials

References

Sources

Fencer Intel 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: Added CPE configurations because not yet analyzed by NVD.