# CVE-2026-40050: CrowdStrike LogScale Unauthenticated Path Traversal

> CVE-2026-40050: CrowdStrike LogScale Unauthenticated Path Traversal. CVSS 9.8 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-40050
Last updated: 2026-06-17T10:44:40Z

- Published: 2026-04-21 16:48 UTC · Updated: 2026-06-17 10:44 UTC · Assigner: CrowdStrike
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 0.60%, 48th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-22, CWE-306

## 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.

## Affected vendors and products

- CrowdStrike: LogScale Self-Hosted

## Tracked companies

- [CrowdStrike](https://rewindex.com/company/crowdstrike.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-40050)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-40050)
- [https://www.crowdstrike.com/en-us/security-advisories/cve-2026-40050/](https://www.crowdstrike.com/en-us/security-advisories/cve-2026-40050/)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-40050 · Markdown: https://rewindex.com/cve/CVE-2026-40050.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-40050 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:28.411Z