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CVE-2026-45393

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CVE-2026-45393

Published: May 12, 2026

Modified: Jun 2, 2026

PUBLISHED

CVSS v3.1

7.8

HIGH

Description

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.

VendorProductVersions

Cribl

Cribl Edge

affected
0 - < 4.17.1

Weaknesses (CWE)

CWE-276
CWE-78

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

Cribl Trust Portal
vendor-advisory

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