{"schemaVersion":3,"id":"CVE-2026-44593","aliases":["GHSA-3636-h3vx-6465","GO-2026-5071"],"status":"published","duplicateOf":null,"title":null,"description":"esm.sh is a no-build content delivery network (CDN) for web development. In 137 and earlier, the legacy router first retrieves a response from legacyServer, parses the incoming request path, and ultimately writes the data to storage via buildStorage.Put. The router concatenates the path components without sanitizing them, producing a storage key. When this key is used, the underlying file system resolves the relative segments and writes the file to the specified path. 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