Vulnerability · Published Apr 21, 2026 · Assigned by CrowdStrike
CVE-2026-40050CrowdStrike LogScale Unauthenticated Path Traversal
Critical 9.8
In plain English
A critical-severity missing authentication in LogScale Self-Hosted from CrowdStrike. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| CrowdStrike | LogScale Self-Hosted | 1.224.0 – through 1.235.0 |
Weakness: CWE-306, CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H