{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40050","assignerOrgId":"13ddcd98-6f4a-40a8-8e24-29ca0aee4661","state":"PUBLISHED","assignerShortName":"CrowdStrike","dateReserved":"2026-04-08T18:55:21.490Z","datePublished":"2026-04-21T16:48:24.722Z","dateUpdated":"2026-04-21T17:25:29.299Z"},"containers":{"cna":{"title":"CrowdStrike LogScale Unauthenticated Path Traversal","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-306","description":"CWE-306 Missing authentication for critical function","type":"CWE"},{"lang":"en","cweId":"CWE-22","description":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"affected":[{"vendor":"CrowdStrike","product":"LogScale Self-Hosted","versions":[{"status":"affected","version":"1.224.0","lessThanOrEqual":"1.235.0","changes":[{"at":"1.233.1, 1.234.1, 1.235.1, 1.228.2","status":"unaffected"}],"versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"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.\n\nNext-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.\n\nLogScale Self-hosted customers should upgrade to a patched version immediately to remediate the vulnerability.\n\nCrowdStrike identified this vulnerability during continuous and ongoing product testing.","supportingMedia":[{"type":"text/html","base64":false,"value":"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.<br><br>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.<br><br>LogScale Self-hosted customers should upgrade to a patched version immediately to remediate the vulnerability.<br><br>CrowdStrike identified this vulnerability during continuous and ongoing product testing.<br>"}]}],"references":[{"url":"https://www.crowdstrike.com/en-us/security-advisories/cve-2026-40050/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"CRITICAL","baseScore":9.8,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.1"},"providerMetadata":{"orgId":"13ddcd98-6f4a-40a8-8e24-29ca0aee4661","shortName":"CrowdStrike","dateUpdated":"2026-04-21T16:52:13.235Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-21T17:24:56.089262Z","id":"CVE-2026-40050","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-21T17:25:29.299Z"}}]}}