CVE-2026-45807— kestra-io kestra 路径遍历漏洞

Kestra: Path traversal via URL-encoded "%2E%2E" in execution and namespace file endpoints allows arbitrary file read

Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.43 and 1.3.19, several Kestra API endpoints accept a kestra:// URI from the client and pass it through StorageInterface.parentTraversalGuard before reading the underlying file from the local storage backend. The guard only inspects the literal URI.toString(), so a URL-encoded .. written as %2E%2E slips through. The downstream code then calls URI.getPath(), which decodes %2E%2E back to .., and the resulting path is handed to Paths.get(...) without normalization. The OS resolves the .. segments at open(2) time, so an authenticated user with a single execution can read any file the Kestra process has access to on the host filesystem (/etc/passwd, mounted secrets, other tenants' execution outputs, etc.). This vulnerability is fixed in 1.0.43 and 1.3.19.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

对路径名的限制不恰当(路径遍历)

kestra-io kestra 路径遍历漏洞

kestra是Kestra公司开源的一个工作流自动化平台。 kestra-io kestra存在路径遍历漏洞，该漏洞源于API端点对URI验证不当，URL编码路径遍历符%2E%2E绕过检查，可能导致认证用户读取主机文件系统上任意文件。

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