CVE-2026-45393
HighCVSS 7.8Summary
A vulnerability chain in Cribl Edge for Windows before version 4.17.1 allows a local authenticated user to escalate privileges to NT AUTHORITY\SYSTEM. Incorrect default permissions on the Windows installer's authentication directory expose a cryptographic secret used for JWT signing and password-hash derivation.
Risk Assessment
The organization may be exposed to unauthorized access to administrative functions, potentially leading to serious security breaches and data loss.
Recommendation
It is recommended to update Cribl Edge to version 4.17.1 or later and review and adjust permissions in the Windows installer's authentication directory.
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Original NVD description (English source)
A vulnerability chain in Cribl Edge for Windows before 4.17.1 allows a local authenticated user to escalate privileges to NT AUTHORITY\SYSTEM. Incorrect default permissions on the Windows installer's authentication directory (CWE-276) expose a cryptographic secret used for JWT signing and password-hash derivation, enabling forgery of administrative API tokens. The forged token can then be used to invoke a pipeline function that reaches an OS command sink (CWE-78) running in the SYSTEM context.