{"id":"CVE-2026-40050","state":"PUBLISHED","title":"CrowdStrike LogScale Unauthenticated Path Traversal","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.\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.","publishedAt":"2026-04-21T16:48:24.722Z","updatedAt":"2026-04-21T17:25:29.299Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CrowdStrike"},"assigner":"CrowdStrike","products":["CrowdStrike LogScale Self-Hosted"],"affected":[{"vendor":"CrowdStrike","product":"LogScale Self-Hosted","defaultStatus":"unaffected","versions":[{"version":"1.224.0","status":"affected","lessThanOrEqual":"1.235.0","changes":[{"at":"1.233.1, 1.234.1, 1.235.1, 1.228.2","status":"unaffected"}],"versionType":"semver"}]}],"references":["https://www.crowdstrike.com/en-us/security-advisories/cve-2026-40050/"],"weaknesses":["CWE-306","CWE-22"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/40xxx/CVE-2026-40050.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40050","state":"PUBLISHED","datePublished":"2026-04-21T16:48:24.722Z","dateUpdated":"2026-04-21T17:25:29.299Z","assignerShortName":"CrowdStrike","assignerOrgId":"13ddcd98-6f4a-40a8-8e24-29ca0aee4661","dateReserved":"2026-04-08T18:55:21.490Z"},"containers":{"cna":{"title":"CrowdStrike LogScale Unauthenticated Path Traversal","descriptions":[{"lang":"en","value":"CrowdStrike has released security updates to address a critical unauthenticated path traversal vulnerability (CVE-2026-40050) in LogScale. 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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."}],"affected":[{"vendor":"CrowdStrike","product":"LogScale Self-Hosted","defaultStatus":"unaffected","versions":[{"version":"1.224.0","status":"affected","lessThanOrEqual":"1.235.0","changes":[{"at":"1.233.1, 1.234.1, 1.235.1, 1.228.2","status":"unaffected"}],"versionType":"semver"}]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-306","lang":"en","description":"CWE-306 Missing authentication for critical function","type":"CWE"},{"cweId":"CWE-22","lang":"en","description":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"CrowdStrike","orgId":"13ddcd98-6f4a-40a8-8e24-29ca0aee4661","dateUpdated":"2026-04-21T16:52:13.235Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-21T17:25:29.299Z"}}]}}}