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.
History

Tue, 02 Jun 2026 17:15:00 +0000

Type Values Removed Values Added
Description Reserved. Details will be published at disclosure. 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.
Title Local privilege escalation to SYSTEM in Cribl Edge for Windows
Weaknesses CWE-276
CWE-78
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Fri, 15 May 2026 21:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20

Fri, 15 May 2026 13:45:00 +0000

Type Values Removed Values Added
Title Cribl Edge Reserved Vulnerability Awaiting Disclosure

Fri, 15 May 2026 11:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 12 May 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Cribl
Cribl cribl
Vendors & Products Cribl
Cribl cribl

Tue, 12 May 2026 03:45:00 +0000

Type Values Removed Values Added
Title Cribl Edge Reserved Vulnerability Awaiting Disclosure

Tue, 12 May 2026 02:00:00 +0000

Type Values Removed Values Added
Description Reserved. Details will be published at disclosure.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Cribl

Published:

Updated: 2026-06-02T15:55:07.304Z

Reserved: 2026-05-12T01:05:53.672Z

Link: CVE-2026-45393

cve-icon Vulnrichment

Updated: 2026-05-15T10:57:50.789Z

cve-icon NVD

Status : Deferred

Published: 2026-05-12T02:16:13.310

Modified: 2026-06-02T17:16:33.903

Link: CVE-2026-45393

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-15T22:30:06Z