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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"sqlite: createTagStore() accepts invalid maxSize values (negative , NaN , float)","articleBody":"### Version\n\nv26.3.0\n\n### Platform\n\n```text\nWindows\n```\n\n### Subsystem\n\nsqlite\n\n### What steps will reproduce the bug?\n\n\n```js\nconst { DatabaseSync } = require('node:sqlite');\nconst db = new DatabaseSync(':memory:');\nconsole.log(db.createTagStore(-1).capacity);   // 18446744073709552000 (overflow)\nconsole.log(db.createTagStore(NaN).capacity);  // garbage value\nconsole.log(db.createTagStore(1.5).capacity);  // accepts float silently\n```\n\n\n\n### How often does it reproduce? Is there a required condition?\n\neverytime!\n\n### What is the expected behavior? Why is that the expected behavior?\n\n`maxSize` is documented as `{integer}` and represents a cache size — negative values, NaN, and floats should throw `ERR_INVALID_ARG_TYPE` or `ERR_OUT_OF_RANGE`.\n\n### What do you see instead?\n\nInvalid values are silently accepted, causing integer overflow and garbage capacity values.\n\n### Additional information\n\n_No response_","author":{"url":"https://github.com/Anshikakalpana","@type":"Person","name":"Anshikakalpana"},"datePublished":"2026-06-08T10:55:21Z","url":"https://github.com/nodejs/node/issues/63791"}