VDB

CVE-2026-42151

CVE-2026-42151 PUBLISHED CVSS 7.5 HIGH

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

Reported by github_m · Published May 4, 2026

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.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
node-problem-detector-1.36Wolfi1.36.0-r0
trillian-fipsChainguard1.7.3-r7
elastic-agent-fips-9.3Chainguard9.3.7-r2
cloud-sql-proxy-2.17Wolfi2.17.1-r23
datadog-agent-7.80Wolfi7.80.4-r5
karma-fipsChainguard0.130-r0
istio-1.30Wolfi1.30.4-r2, 1.30.2-r1
elastic-agent-9.3Chainguard9.3.7-r1
certificate-transparencyChainguard1.3.3-r22, 1.3.3-r13
grafana-13.1Chainguard13.1.0-r1
istio-1.29Chainguard1.29.7-r3, 1.29.3-r1
google-cloud-otel-ops-collectorChainguard0.154.0-r1

33 more packages have a fixed version. See every fix in Lookup.

Risk scores

CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

VendorProductVersions
prometheusprometheus< 3.5.3, >= 3.6.0, < 3.11.3
Red HatRed Hat Quay 3
wolfinode-problem-detector-1.360
Red HatFile Integrity Operator
Red HatMulticluster Global Hub
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.141787645355
Red HatRed Hat Quay 3.121784353904, 1783751865
chainguardminio-object-browser*
Red HatNetwork Observability Operator
chainguardtrillian-fips0
chainguardelastic-agent-fips-9.30
Red HatCustom Metric Autoscaler operator for Red Hat Openshift
wolficloud-sql-proxy-2.170
chainguardelastic-agent-fips-8.19*
chainguardloki-3.7*
Red HatRHEM 1.1 for RHEL 90:1.1.3-1.el9em
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.131787259108
Red HatRed Hat Quay 3.101783750447
Red HatLogging Subsystem for Red Hat OpenShift 6.01785418855
wolfidatadog-agent-7.800

…and 487 more

Timeline

  • Apr 27, 2026 CVE Published
  • May 4, 2026 PoC Published (2 in total, the first dated here)
  • May 18, 2026 EPSS Score (30 in total, the first dated here)
  • Jun 1, 2026 Security Advisory (63 in total, the first dated here)
  • Jul 2, 2026 Distribution Patch (62 in total, the first dated here)
  • Jul 14, 2026 CVE Updated
  • Aug 2, 2026 Coalition ESS Score

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2026-42151
vulnetix vdb fixes CVE-2026-42151

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-42151/fixes/registry"

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References

…and 39 more

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