CVE-2026-42151
HIGH EPSS 16.1%
Published May 4, 20261mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
Published May 4, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None
Threat Intelligence
EPSS Exploit Probability
16.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 2
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure
CWE-312
Affected Products 2
| Vendor | Product | Version | Range |
|---|---|---|---|
| prometheus | prometheus | * | ≥2.48.0 – <3.5.3 |
| prometheus | prometheus | * | ≥3.6.0 – <3.11.3 |
References 5
- github.com https://github.com/prometheus/prometheus/pull/18587
- github.com https://github.com/prometheus/prometheus/pull/18590
- github.com https://github.com/prometheus/prometheus/releases/tag/v3.11.3
- github.com https://github.com/prometheus/prometheus/releases/tag/v3.5.3
- github.com https://github.com/prometheus/prometheus/security/advisories/GHSA-wg65-39gg-5wfj
Remediation
- github.com https://github.com/prometheus/prometheus/pull/18587
- github.com https://github.com/prometheus/prometheus/pull/18590