CVE-2026-45393
HIGH EPSS 12.5%
Published May 12, 20261mo ago · Modified Jun 17, 20262w ago
8.5 CVSS 4.0
Published May 12, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
12.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 3
CWE-20 Improper Input Validation Validation
CWE-276
CWE-78 OS Command Injection Injection
References 2
- docs.cribl.io https://docs.cribl.io/edge/release-notes/release-v4171#security-fixes
- trust.cribl.io https://trust.cribl.io/notifications
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.