vpod

Vpod Live demo • Getting Started • Documentation • Issues • Contributing What is a vpod ? A vpod is a lightweight, portable sandbox that gives an untrusted process an instant Linux environment. It uses a RISC‑V architecture and runs entirely inside WebAssembly. Fast startup : Boot in under a...

CVE-2026-115386

A flaw was found in Wasmtime. An information disclosure vulnerability exists in the WebAssembly System Interface WASI directory reading implementation, which copies uninitialized structure padding into guest memory. A guest module with access to a preopened directory can exploit this issue by...

CVE-2026-115391

A flaw was found in Wasmtime. A malicious guest can cause a Denial of Service DoS on the host by submitting excessively large data buffers to file or HTTP write streams within the WebAssembly System Interface WASI. Because incoming guest writes are buffered in host memory without size limits, thi...

DEBIAN-CVE-2026-115387

Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 contains a denial of service vulnerability in wasmtime-wasi that allows guest WASI programs to panic the host via overflowing filesystem timestamps. Attackers can pass atim or mtim values whose sub-second field overflows the...

DEBIAN-CVE-2026-115392

Wasmtime before 24.0.13, 25.0.0 before 36.0.14, 37.0.0 before 46.0.3, and 47.0.0 before 47.0.4 allows a filesystem sandbox escape in wasmtime-wasi because its cap-std dependency mishandles symlinks with trailing slashes on macOS and Linux kernels lacking openat2. A guest with write access to any...

DEBIAN-CVE-2026-115381

Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains an unbounded memory allocation in the wasmtime-wasi WASIp2 write-zeroes method of SinkOutputStream, the default stream used when stdout/stderr are not configured. A malicious WebAssembly guest can request huge...

DEBIAN-CVE-2026-115380

Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains a denial of service vulnerability in the wasmtime-wasi WASI preview 0 polloneoff adapter, which performs On host work per subscription without consuming or checking fuel. Malicious guest modules can pass many...

CVE-2026-115392 Wasmtime before 24.0.13, 25.0.0 before 36.0.14, 37.0.0 before 46.0.3, and 47.0.0 before 47.0.4 Sandbox Escape via Trailing Slashes

Wasmtime before 24.0.13, 25.0.0 before 36.0.14, 37.0.0 before 46.0.3, and 47.0.0 before 47.0.4 allows a filesystem sandbox escape in wasmtime-wasi because its cap-std dependency mishandles symlinks with trailing slashes on macOS and Linux kernels lacking openat2. A guest with write access to any...

EUVD-2026-108326

Wasmtime before 24.0.13, 25.0.0 before 36.0.14, 37.0.0 before 46.0.3, and 47.0.0 before 47.0.4 allows a filesystem sandbox escape in wasmtime-wasi because its cap-std dependency mishandles symlinks with trailing slashes on macOS and Linux kernels lacking openat2. A guest with write access to any...

CVE-2026-115392

Versions of Wasmtime prior to 24.0.13, 25.0.0 before 36.0.14, 37.0.0 before 46.0.3, and 47.0.0 before 47.0.4 are vulnerable to a filesystem sandbox escape in wasmtime-wasi . The root cause is that the cap-std dependency mishandles symlinks containing trailing slashes on macOS and Linux kernels la...

CVE-2026-115388

The wasmtime-wasi-http component in Wasmtime versions before 36.0.16 , 37.0.0 before 48.0.3 , and 49.0.0 before 49.0.1 fails to enforce the wasi:io/streams check-write allowance for WASIp2 outgoing HTTP bodies. This oversight allows oversized writes to succeed instead of trapping, enabling a mali...

CVE-2026-115388 Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 Memory Exhaustion DoS via wasmtime-wasi-http Outgoing Body Write

wasmtime-wasi-http in Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 does not enforce the wasi:io/streams check-write allowance for WASIp2 outgoing HTTP bodies, so oversized writes succeed instead of trapping. A malicious guest can pass large buffers to write on...

EUVD-2026-108318

wasmtime-wasi-http in Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 does not enforce the wasi:io/streams check-write allowance for WASIp2 outgoing HTTP bodies, so oversized writes succeed instead of trapping. A malicious guest can pass large buffers to write on...

CVE-2026-115387 Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 Host Panic via WASI Filesystem Timestamp Overflow

Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 contains a denial of service vulnerability in wasmtime-wasi that allows guest WASI programs to panic the host via overflowing filesystem timestamps. Attackers can pass atim or mtim values whose sub-second field overflows the...

EUVD-2026-108316

Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 contains a denial of service vulnerability in wasmtime-wasi that allows guest WASI programs to panic the host via overflowing filesystem timestamps. Attackers can pass atim or mtim values whose sub-second field overflows the...

CVE-2026-115387

The Wasmtime runtime is vulnerable to a denial of service vulnerability in wasmtime-wasi affecting versions before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1. The root cause is an integer overflow (CWE-190) where guest WASI programs can pass atim or mtim values with a sub-second fiel...

EUVD-2026-108313

Wasmtime 46.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a denial of service vulnerability in the wasmtime-wasi WASIp3 implementation that allows guests to abort the Unix host process. Guests with mutable preopened directory access can call set-times or set-times-at with negative seconds...

CVE-2026-115385

The Wasmtime runtime (versions 46.0.0 before 48.0.4 and 49.0.0 before 49.0.2 ) contains a denial of service vulnerability within the wasmtime-wasi WASIp3 implementation. The root cause is an assertion failure triggered when guests with mutable preopened directory access call set-times or set-time...

CVE-2026-115385 Wasmtime 46.0.0 before 48.0.4 and 49.0.0 before 49.0.2 Host Panic via WASIp3 Timestamps

Wasmtime 46.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a denial of service vulnerability in the wasmtime-wasi WASIp3 implementation that allows guests to abort the Unix host process. Guests with mutable preopened directory access can call set-times or set-times-at with negative seconds...

EUVD-2026-108306

Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains an unbounded memory allocation in the wasmtime-wasi WASIp2 write-zeroes method of SinkOutputStream, the default stream used when stdout/stderr are not configured. A malicious WebAssembly guest can request huge...