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VULNERABILITIES

CVE-2026-42151 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: redhat-SADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:25039 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:25245 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:25504 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:34357 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:34359 redhat-SADP

see all 56 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-200Exposure of Sensitive Information to an Unauthorized Actor[email protected]
CWE-256Plaintext Storage of a Passwordredhat-SADP
CWE-312Cleartext Storage of Sensitive Information[email protected]

Affected Products

ProductVersions
prometheus prometheus
>= 2.48.0, < 3.5.3
>= 3.6.0, < 3.11.3

CPE

  • cpe:2.3:a:prometheus:prometheus:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

41 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-42151
NVD Published Date:
May 4, 2026
NVD Last Modified:
Sep 10, 2026
Source:
[email protected]
CVE-2026-42151 Details - Not Deferred