JLSEC-2026-1348 Wasmtime doesn't fully sandbox all the Windows device filenames

Impact Wasmtime's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however it did not block access to the special device filenames which use superscript digits, such as "COM¹", "COM²", "LPT⁰", "LPT¹", and so...

CVE-2024-51745

Wasmtime is a fast and secure runtime for WebAssembly. Wasmtime's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however it did not block access to the special device filenames which use superscript digits,...

CVE-2024-51756

The cap-std project is organized around the eponymous cap-std crate, and develops libraries to make it easy to write capability-based code. cap-std's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however i...

CVE-2024-51756 cap-std doesn't fully sandbox all the Windows device filenames

The cap-std project is organized around the eponymous cap-std crate, and develops libraries to make it easy to write capability-based code. cap-std's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however i...

CVE-2024-51756

The cap-std project is organized around the eponymous "cap-std" crate, and develops libraries to make it easy to write capability-based code. cap-std's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however...

CVE-2024-51756 cap-std doesn't fully sandbox all the Windows device filenames

The cap-std project is organized around the eponymous cap-std crate, and develops libraries to make it easy to write capability-based code. cap-std's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however i...

CVE-2024-51745 Wasmtime doesn't fully sandbox all the Windows device filenames

Wasmtime is a fast and secure runtime for WebAssembly. Wasmtime's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however it did not block access to the special device filenames which use superscript digits,...

CVE-2024-51745

Wasmtime on Windows had a sandbox bypass where filenames with superscript digits (e.g., COM¹, LPT⁰) were not blocked, allowing untrusted Wasm code with filesystem access to reach devices and peripherals via special device filenames. Affected software: Wasmtime’s Windows filesystem sandbox. Root c...