Leodog896

**Name of the Vulnerable Software and Affected Versions** Node.js versions 20, 22, and 23 **Description** The issue allows attackers to misuse the diagnostics channel utility, accessing internal worker threads for malicious purposes. This is not limited to workers but also exposes internal workers, where an instance of them can be fetched, and its constructor can be grabbed and reinstated for malicious usage. This affects Permission Model users (--permission). **Recommendations** For Node.js versions 20, 22, and 23, consider disabling the diagnostics channel utility as a temporary workaround until a patch is available. Restrict access to internal worker threads to minimize the risk of exploitation. Avoid using the diagnostics channel utility for malicious purposes until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Node.js versions v20, v22, and v23 **Description** The diagnostics channel utility allows an event to be hooked into whenever a worker thread is created, exposing not only workers but also internal workers. This enables malicious actors to fetch instances of these workers, access their constructors, and potentially reinstate them for malicious purposes. The issue affects Permission Model users (--permission) and can be used to expose sensitive data and resources. **Recommendations** For Node.js versions v20, v22, and v23, consider disabling the diagnostics channel utility as a temporary workaround to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Node.js versions 16.x through 20.x **Description** A privilege escalation issue exists in the experimental policy mechanism due to inadequate access controls. This can be exploited by a remote attacker to bypass existing security restrictions. The use of the deprecated API `process.binding()` can bypass the policy mechanism, allowing an attacker to require internal modules and eventually execute arbitrary code outside of the limits defined in a `policy.json` file. The policy is an experimental feature of Node.js. **Recommendations** For Node.js versions 16.x through 20.x, consider disabling the use of the deprecated API `process.binding()` as a temporary workaround until a patch is available. Restrict access to internal modules to minimize the risk of exploitation. Avoid using `process.binding('spawn sync')` in sensitive operations until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Denosaurs emoji package versions 0.1.0 through 0.2.x **Description** The Denosaurs emoji package has an issue where the reTrimSpace regex has 2nd degree polynomial inefficiency, leading to a delayed response given a big payload. This issue can cause problems when handling large payloads. As a workaround, users can avoid using the `replace`, `unemojify`, or `strip` functions to minimize the risk. **Recommendations** For Denosaurs emoji package versions 0.1.0 through 0.2.x, update to version 0.3.0 to resolve the issue. As a temporary workaround, consider avoiding the use of the `replace`, `unemojify`, or `strip` functions until the update is applied.

**Name of the Vulnerable Software and Affected Versions** Deno versions prior to 1.31.2 **Description** The issue is related to the lack of filtering for special control characters in Deno, a runtime for JavaScript and TypeScript. This allows a malicious program to clear the first two lines of a prompt and replace them with any desired text, effectively spoofing the interactive permission prompt for certain actions. This can give the program the ability to choose what program it wants to run, posing a security risk. The problem cannot be exploited on systems without an interactive prompt, such as headless servers. **Recommendations** For Deno versions prior to 1.31.2, update to version 1.31.2 or later to resolve the issue. As a temporary workaround, consider restricting the use of the `op spawn child` and `op kill` functions until a patch is applied. Additionally, avoid using the `--unstable` flag in versions prior to 1.31.0, as it is required for exploitation in those versions.

**Name of the Vulnerable Software and Affected Versions** Deno versions prior to 1.29.3 **Description** The issue is related to errors in synchronization when using a shared resource in Deno, a runtime for JavaScript and TypeScript. This could allow a remote attacker to execute arbitrary code. Multi-threaded programs can spoof interactive permission prompts, potentially tricking users into allowing unauthorized actions. The problem impacts users who rely on interactive permission prompts, especially those using the Web Worker API. The exploitation is timing-sensitive and cannot be reliably reproduced. This issue cannot be exploited on systems without an interactive prompt, such as headless servers. **Recommendations** For Deno versions prior to 1.29.3, update to version 1.29.3 to resolve the issue. As a temporary workaround for users unable to upgrade, run Deno with the `--no-prompt` flag to disable interactive permission prompts.