CVE-2025-54781— Himmelblau leaks an Intune service access token in its logs
Quick assessment
Affected
himmelblau-idm himmelblau
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Himmelblau是Himmelblau开源的一个 Azure Entra ID 身份验证模块。 Himmelblau 1.0.0之前版本存在日志信息泄露漏洞，该漏洞源于调试模式下泄露Intune服务访问令牌，可能导致信息泄露。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-54781
Vulnerability Information
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Vulnerability Title
Himmelblau leaks an Intune service access token in its logs
Source: CVE Program / CVE List V5
Vulnerability Description
Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. When debugging is enabled for Himmelblau in version 1.0.0, the himmelblaud_tasks service leaks an Intune service access token to the system journal. This short-lived token can be used to detect the host's Intune compliance status, and may permit additional administrative operations for the Intune host device (though the API for these operations is undocumented). This is fixed in version 1.1.0. To workaround this issue, ensure that Himmelblau debugging is disabled.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Himmelblau 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Himmelblau是Himmelblau开源的一个 Azure Entra ID 身份验证模块。 Himmelblau 1.0.0之前版本存在日志信息泄露漏洞，该漏洞源于调试模式下泄露Intune服务访问令牌，可能导致信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| himmelblau-idm | himmelblau | >= 1.0.0, < 1.1.0 | - |
|
II. Public POCs for CVE-2025-54781
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: himmelblau
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CVE-2026-45108
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CVE-2026-34397
himmelblau: NSS fake-primary group lookup reintroduces name -
CVE-2026-31979
himmelblaud-tasks: local privilege escalation via /tmp symli -
CVE-2026-31957
Himmelblau unset domain configuration can allow any-tenant a -
CVE-2025-59044
Himmelblau vulnerable to GID collision via group name-derive
Same vendor: himmelblau-idm
-
CVE-2026-45108
Himmelblau: Authentication Bypass via Cross-User Local Sessi -
CVE-2026-34397
himmelblau: NSS fake-primary group lookup reintroduces name -
CVE-2026-31979
himmelblaud-tasks: local privilege escalation via /tmp symli -
CVE-2026-31957
Himmelblau unset domain configuration can allow any-tenant a -
CVE-2025-59044
Himmelblau vulnerable to GID collision via group name-derive
Same weakness: CWE-532
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CVE-2026-76375
Information Disclosure through Environment Data Logging in A -
CVE-2026-76374
Information Disclosure through Sensitive Data Logging in AD
V. Comments for CVE-2025-54781
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