Microsoft Identity Web Exposes Client Secrets and Certificate Information in Service Logs
Published Apr 9, 2025
4.7
MEDIUMCVSS 3.1
EPSS 0.10%
Description
Microsoft Identity Web is a library which contains a set of reusable classes used in conjunction with ASP.NET Core for integrating with the Microsoft identity platform (formerly Azure AD v2.0 endpoint) and AAD B2C. This vulnerability affects confidential client applications, including daemons, web apps, and web APIs. Under specific circumstances, sensitive information such as client secrets or certificate details may be exposed in the service logs of these applications. Service logs are intended to be handled securely. Service logs generated at the information level or credential descriptions containing local file paths with passwords, Base64 encoded values, or Client secret. Additionally, logs of services using Base64 encoded certificates or certificate paths with password credential descriptions are also affected if the certificates are invalid or expired, regardless of the log level. Note that these credentials are not usable due to their invalid or expired status. To mitigate this vulnerability, update to Microsoft.Identity.Web 3.8.2 or Microsoft.Identity.Abstractions 9.0.0.
Affected products
-
- Version >= 3.2.0, < 3.8.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| AzureAD | Microsoft-Identity-Web | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Apr 9, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.10% (0.00097) | 0.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.08% (0.00080) | 0.24th | v5 (v2026.06.15) |
| Apr 10, 2025 | 0.01% (0.00008) | 0.33th | v4 (v2025.03.14) |
References (3)
- https://github.com/AzureAD/microsoft-identity-web/security/advisories/GHSA-rpq8-q44m-2rpg x_refsource_CONFIRM
- https://github.com/advisories/GHSA-rpq8-q44m-2rpg Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-32016
| Link | Providers | Tags |
|---|---|---|
| https://github.com/AzureAD/microsoft-identity-web/security/advisories/GHSA-rpq8-q44m-2rpg | x_refsource_CONFIRM | |
| https://github.com/advisories/GHSA-rpq8-q44m-2rpg | Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2025-32016 |
Change history (0)
No recorded changes yet.