CVE-2026-56748: Cribl Stream

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Improper validation of symbolic links in the Pack Git import feature in Cribl Stream before 4.18.2 allows a remote authenticated attacker with Pack import and pipeline preview permissions to execute arbitrary code as the Cribl server process via a crafted Git repository containing a symbolic link in the pack's functions directory.

Affected products

• Cribl Cribl Stream: before 4.18.2 (fixed in 4.18.2)

Published 2026-07-27. Last modified 2026-08-20.