CVE-2026-42151

highpriority · track · 0OT risk · elevatedEPSS 0.004 · 29 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.35% (29th) EPSS

CVSS 7.5 · high

Is it mine?

21 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · security-advisories@github.comexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondaryexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · OSV

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USCWE-200USCWE-256USCWE-256USCWE-312USCWE-312US

affected products (21)

Products and version ranges known to be affected.

Microsoft Azure Linux azl3all versionscert_bundDEcpe:/o:microsoft:azure_linux:azl3
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Open Source Open Source Prometheus <3.11.3< 3.11.3cert_bundDE
Open Source Open Source Prometheus <3.5.3< 3.5.3cert_bundDE
Open Source Prometheus< 3.11.3cert_bundDE
Open Source Prometheus< 3.5.3cert_bundDE
Red Hat OpenShift≤ Container Platform <4.22.4cert_bundDE
Red Hat Red Hat OpenShift Container Platform <4.22.4≤ Container Platform <4.22.4cert_bundDE
prometheus prometheus≤ < 3.5.3enisa_euvdEU
prometheus prometheus3.6.0, → 3.11.3enisa_euvdEU
prometheus prometheus2.48.0 → 3.5.3nvdUScpe:2.3:a:prometheus:prometheus:*:*:*:*:*:*:*:*
prometheus prometheus3.6.0 → 3.11.3nvdUScpe:2.3:a:prometheus:prometheus:*:*:*:*:*:*:*:*
Bitnami prometheus< 0.305.3osvUSpkg:bitnami/prometheus
Bitnami prometheus0.306.0 → 0.311.3osvUSpkg:bitnami/prometheus
Bitnami prometheus1.0.0 → 3.5.3osvUSpkg:bitnami/prometheus
Bitnami prometheus3.6.0 → 3.11.3osvUSpkg:bitnami/prometheus

showing 20 of 21

advisories (5)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1292Prometheus: Mehrere SchwachstellenDeutsch2026-04-27csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Prometheus ausnutzen, um einen Denial of Service Angriff durchzuführen, vertrauliche Informationen offenzulegen oder Cross-Site-Scripting-Angriffe durchzuführen.
WID-SEC-W-2026-3046IBM Concert: Mehrere SchwachstellenDeutsch2026-08-26csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM Concert ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen, um einen SQL-Injection Angriff durchzuführen und um Sicherheitsvorkehrungen zu umgehen.
GHSA-wg65-39gg-5wfjPrometheus Azure AD remote write OAuth client secret exposed via config API2026-05-05ghsa · osvUS
### Impact Users who use Azure AD remote write with OAuth authentication are impacted. 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. ### Patches The problem has been patched by changing `ClientSecret` in `OAuthConfig` to `Secret`. Users should upgrade to 3.11.3 or 3.5.3 LTS. ### Workarounds Users who can not upgrade can switch to Managed Identity or Workload Identity authentication for Azure AD remote write, which do not involve a client secret.
BIT-prometheus-2026-42151Prometheus Azure AD remote write OAuth client secret exposed via config API2026-07-15vendor · osvUS
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.
GO-2026-5710Prometheus Azure AD remote write OAuth client secret exposed via config API in github.com/prometheus/prometheus2026-06-25vendor · osvUS
Prometheus Azure AD remote write OAuth client secret exposed via config API in github.com/prometheus/prometheus

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund nvd NVD CVE.org MITRE

published 2026-05-04modified 2026-09-10

references (63)

External citations — patches, advisories, analysis.

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