CVE-2026-45391: Local privilege escalation in Cribl Edge for Linux

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-12 · updated 2026-10-26
Weakness: CWE-78

Description

A command injection vulnerability in Cribl Edge for Linux versions 3.2.0 through 4.17.0 allows a local unprivileged user to execute arbitrary commands in the context of the Cribl Edge service account.

Affected products

Cribl Edge: from 3.2.0 before 4.17.1 — fixed in 4.17.1

How to fix

Upgrade to a fixed version: Cribl Edge 4.17.1. Check the vendor advisory for mitigations.

References

https://docs.cribl.io/edge/release-notes/release-v4171#security-fixes
https://trust.cribl.io/notifications

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