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.
References (2)
Core 2
Core References
Release Notes release-notes
Cribl Edge 4.17.1 Security Fixes
https://docs.cribl.io/edge/release-notes/release-v4171#security-fixes
Scores
CVSS v3
7.8
EPSS
0.0022
EPSS Percentile
12.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-20
CWE-276
CWE-78
Status
published
Products (1)
Cribl/Cribl Edge
< 4.17.1
Published
May 12, 2026
Tracked Since
May 12, 2026