CVE-2026-45393CWE-276CWE-78

Local privilege escalation to SYSTEM in Cribl Edge for Windows

High · published May 12, 2026

CVSS v4.0
8.5
EPSS
0%
Percentile
32.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.5 · HIGH
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
EPSS
0.00397 · 32.7th percentile
Weaknesses
CWE-276 · Incorrect Default Permissions; CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-05-12T01:06Z
EPSS history
Timeline
  • 12 MAY 01:06Z
    Local privilege escalation to SYSTEM in Cribl Edge for Windows
    cvelistv5