{"record":{"id":"07f5795053a0efd6","repo":"FlowiseAI/Flowise","slug":"e-07f579","errorCode":null,"errorMessage":"${e}","messagePattern":"\\$\\{e\\}","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/components/nodes/vectorstores/Faiss/Faiss.ts","lineNumber":103,"sourceCode":"                if (flattenDocs[i] && flattenDocs[i].pageContent) {\n                    finalDocs.push(new Document(flattenDocs[i]))\n                }\n            }\n\n            try {\n                const vectorStore = await FaissStore.fromDocuments(finalDocs, embeddings)\n                // Validate and sanitize the base path to prevent path traversal attacks\n                const validatedPath = validateVectorStorePath(basePath)\n                await vectorStore.save(validatedPath)\n\n                // Avoid illegal invocation error\n                vectorStore.similaritySearchVectorWithScore = async (query: number[], k: number) => {\n                    return await similaritySearchVectorWithScore(query, k, vectorStore)\n                }\n\n                return { numAdded: finalDocs.length, addedDocs: finalDocs }\n            } catch (e) {\n                throw new Error(e)\n            }\n        }\n    }\n\n    async init(nodeData: INodeData): Promise<any> {\n        const embeddings = nodeData.inputs?.embeddings as Embeddings\n        const basePath = nodeData.inputs?.basePath as string\n        const output = nodeData.outputs?.output as string\n        const topK = nodeData.inputs?.topK as string\n        const k = topK ? parseFloat(topK) : 4\n\n        // Validate and sanitize the base path to prevent path traversal attacks\n        const validatedPath = validateVectorStorePath(basePath)\n        const vectorStore = await FaissStore.load(validatedPath, embeddings)\n\n        // Avoid illegal invocation error\n        vectorStore.similaritySearchVectorWithScore = async (query: number[], k: number) => {\n            return await similaritySearchVectorWithScore(query, k, vectorStore)","sourceCodeStart":85,"sourceCodeEnd":121,"githubUrl":"https://github.com/FlowiseAI/Flowise/blob/abe4a8601a058047b350c260676826e21dd14101/packages/components/nodes/vectorstores/Faiss/Faiss.ts#L85-L121","documentation":"Generic catch-all in the Faiss upsert path covering FaissStore.fromDocuments, path validation/sanitization, vectorStore.save(validatedPath), and the similaritySearchVectorWithScore reassignment. Wraps any failure into a string Error.","triggerScenarios":"Upsert documents into a Faiss store persisted to basePath. Fails on embedding errors, invalid/traversal-blocked basePath (validateVectorStorePath throws), filesystem permission errors during save, or fromDocuments internal errors.","commonSituations":"basePath outside allowed root (rejected by validateVectorStorePath), read-only or non-existent directory, embedding model failure, or disk full during save.","solutions":["Ensure basePath is within an allowed directory and writable.","Create the directory if it does not exist before save.","Confirm the embedding model is reachable.","Rethrow `e` directly to preserve the underlying filesystem/embedding error."],"exampleFix":"// before\n} catch (e) {\n    throw new Error(e)\n}\n\n// after\n} catch (e) {\n    console.error('Faiss upsert/save failed', e)\n    throw e\n}","handlingStrategy":"validation","validationCode":"import { existsSync, mkdirSync } from 'fs'\nimport { dirname } from 'path'\nconst abs = resolve(basePath)\nif (!abs.startsWith(ALLOWED_ROOT)) throw new Error('basePath outside allowed root')\nif (!existsSync(dirname(abs))) mkdirSync(dirname(abs), { recursive: true })\nawait vectorStore.save(abs)","typeGuard":"function isWritablePath(p: string): boolean {\n  try { accessSync(dirname(p), constants.W_OK); return true } catch { return false }\n}","tryCatchPattern":"try {\n  await vectorStore.save(validatedPath)\n} catch (e) {\n  throw new Error(`Faiss save failed (path=${validatedPath}): ${e instanceof Error ? e.message : e}`)\n}","preventionTips":["Constrain basePath to a known allow-listed root.","Ensure the parent directory exists and is writable before save.","Validate embedding outputs before persisting."],"tags":["faiss","vector-store","error-wrapping","filesystem"],"backgroundTag":null,"analyzedSha":"abe4a8601a058047b350c260676826e21dd14101","analyzedAt":"2026-08-12T16:04:40.823Z","schemaVersion":2},"datasetVersion":"2026-08-12T18:17:37.767Z"}