{"schemaVersion":3,"id":"CVE-2026-40318","aliases":["GHSA-vw86-c94w-v3x4","GO-2026-5679"],"status":"published","duplicateOf":null,"title":null,"description":"SiYuan is an open-source personal knowledge management system. In versions 3.6.3 and prior, the /api/av/removeUnusedAttributeView endpoint constructs a filesystem path using the user-controlled id parameter without validation or path boundary enforcement. An attacker can inject path traversal sequences such as ../ into the id value to escape the intended directory and delete arbitrary .json files on the server, including global configuration files and workspace metadata. 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