{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/logscale/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":9.8,"id":"CVE-2026-40050"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["critical"],"_cs_tags":["path-traversal","vulnerability","logscale","crowdstrike"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eCrowdStrike has disclosed CVE-2026-40050, a critical unauthenticated path traversal vulnerability affecting specific versions of LogScale. This vulnerability allows unauthenticated remote attackers to read arbitrary files from the server\u0026rsquo;s filesystem. The vulnerability resides in a specific cluster API endpoint. CrowdStrike mitigated the vulnerability for LogScale SaaS customers on April 7, 2026, by deploying network-layer blocks. CrowdStrike self-hosted LogScale customers are urged to upgrade to a patched version immediately to remediate the vulnerability. The vulnerability was identified through CrowdStrike\u0026rsquo;s internal product testing. Next-Gen SIEM customers are not affected.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker identifies a vulnerable LogScale instance with the exposed cluster API endpoint.\u003c/li\u003e\n\u003cli\u003eAttacker crafts a malicious HTTP request containing a path traversal payload targeting the vulnerable API endpoint.\u003c/li\u003e\n\u003cli\u003eThe crafted request bypasses authentication checks due to the vulnerability.\u003c/li\u003e\n\u003cli\u003eLogScale server processes the request and attempts to access the file specified in the path traversal payload.\u003c/li\u003e\n\u003cli\u003eDue to the missing input validation, the server accesses files outside the intended directory.\u003c/li\u003e\n\u003cli\u003eThe server reads the contents of the targeted file from the filesystem.\u003c/li\u003e\n\u003cli\u003eThe file content is included in the HTTP response sent back to the attacker.\u003c/li\u003e\n\u003cli\u003eAttacker obtains sensitive information from the server\u0026rsquo;s filesystem, such as configuration files, credentials, or internal data.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-40050 allows an unauthenticated remote attacker to read arbitrary files on the LogScale server. This could lead to the exposure of sensitive data, including configuration files, credentials, and internal application data. The vulnerability affects self-hosted LogScale customers who have not applied the necessary security updates. The impact could be severe, potentially leading to data breaches or unauthorized access to the system.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade self-hosted LogScale instances to the latest patched version to remediate CVE-2026-40050 immediately.\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for suspicious requests containing path traversal patterns targeting LogScale\u0026rsquo;s API endpoints to detect potential exploitation attempts (see rule: \u0026ldquo;Detect LogScale Path Traversal Attempts\u0026rdquo;).\u003c/li\u003e\n\u003cli\u003eDeploy network-layer blocks to restrict access to the vulnerable API endpoint if immediate patching is not feasible.\u003c/li\u003e\n\u003cli\u003eReview access controls and network segmentation to limit the impact of potential future vulnerabilities.\u003c/li\u003e\n\u003cli\u003eEnable webserver logging to capture cs-uri-query, cs-uri-stem, and cs-method to improve visibility and incident response.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-22T12:00:00Z","date_published":"2026-04-22T12:00:00Z","id":"/briefs/2026-04-crowdstrike-logscale-path-traversal/","summary":"A critical unauthenticated path traversal vulnerability (CVE-2026-40050) in CrowdStrike LogScale allows remote attackers to read arbitrary files from the server filesystem if a specific cluster API endpoint is exposed, necessitating immediate patching for self-hosted customers.","title":"CrowdStrike LogScale Unauthenticated Path Traversal Vulnerability (CVE-2026-40050)","url":"https://feed.craftedsignal.io/briefs/2026-04-crowdstrike-logscale-path-traversal/"}],"language":"en","title":"CraftedSignal Threat Feed — Logscale","version":"https://jsonfeed.org/version/1.1"}