References to Advisories, Solutions, and Tools

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Change History

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.

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-22

CWE-306

https://www.crowdstrike.com/en-us/security-advisories/cve-2026-40050/