# CVE-2026-40050

> Vulnerability · severity: **CRITICAL** (CVSS 9.8).

## Description

CrowdStrike has released security updates to address a critical unauthenticated path traversal vulnerability (CVE-2026-40050) in LogScale. This vulnerability only requires mitigation by customers that host specific versions of LogScale and does not affect Next-Gen SIEM customers. The vulnerability exists in a specific cluster API endpoint that, if exposed, allows a remote attacker to read arbitrary files from the server filesystem without authentication.

Next-Gen SIEM customers are not affected and do not need to take any action. CrowdStrike mitigated the vulnerability for LogScale SaaS customers by deploying network-layer blocks to all clusters on April 7, 2026. We have proactively reviewed all log data and there is no evidence of exploitation.

LogScale Self-hosted customers should upgrade to a patched version immediately to remediate the vulnerability.

CrowdStrike identified this vulnerability during continuous and ongoing product testing.

## Key facts

- **CVE ID:** CVE-2026-40050
- **Published:** 2026-04-21
- **CVSS severity:** CRITICAL
- **CVSS base score:** 9.8
- **CWE codes:** CWE-22, CWE-306

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40050

## Citation

> AI Analytics. CVE-2026-40050. Retrieved 2026-07-23 from https://api.ai-analytics.org/cve/CVE-2026-40050. Derived from NIST NVD. Licensed CC0.

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