CVE-2025-64345: Concurrent Execution using Shared Resource with Improper Synchronization

Wasmtime is a runtime for WebAssembly. Prior to version 38.0.4, 37.0.3, 36.0.3, and 24.0.5, Wasmtime's Rust embedder API contains an unsound interaction where a WebAssembly shared linear memory could be viewed as a type which provides safe access to the host Rust to the contents of the linear...

RUSTSEC-2025-0118 Unsound API access to a WebAssembly shared linear memory

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hc7m-r6v8-hg9q For more information see the GitHub-hosted security advisory...

Unsound API access to a WebAssembly shared linear memory

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hc7m-r6v8-hg9q For more information see the GitHub-hosted security advisory...

PT-2025-46722

Name of the Vulnerable Software and Affected Versions Wasmtime versions 24.0.0 through 24.0.4 Wasmtime versions 36.0.0 through 36.0.2 Wasmtime versions 37.0.0 through 37.0.2 Wasmtime versions 38.0.0 through 38.0.3 Description Wasmtime’s Rust embedder API has an issue where a WebAssembly shared...

CVE-2025-62711

A Denial of Service vulnerability has been identified in the Wasmtime WebAssembly runtime, affecting versions 38.0.0 through 38.0.2. An attacker can exploit this flaw by providing a carefully crafted WebAssembly component and invoking it in a specific manner. This malicious action causes the host...

Linux Distros Unpatched Vulnerability : CVE-2025-62711

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Wasmtime is a runtime for WebAssembly. In versions from 38.0.0 to before 38.0.3, the implementation of component-model related host-to-wasm trampolines in...

Wasmtime vulnerable to segfault when using component resources

Impact The implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a segfault or assert failure. This bug was introduced in the release of...

GHSA-4H67-722J-5PMC Wasmtime vulnerable to segfault when using component resources

Impact The implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a segfault or assert failure. This bug was introduced in the release of...

EUVD-2025-35897

Wasmtime vulnerable to segfault when using component resources...

CVE-2025-62711

Wasmtime is a runtime for WebAssembly. In versions from 38.0.0 to before 38.0.3, the implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a...

UBUNTU-CVE-2025-62711

Wasmtime is a runtime for WebAssembly. In versions from 38.0.0 to before 38.0.3, the implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a...

CVE-2025-62711 Wasmtime vulnerable to segfault when using component resources

Wasmtime is a runtime for WebAssembly. In versions from 38.0.0 to before 38.0.3, the implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a...

CVE-2025-62711

Wasmtime is a runtime for WebAssembly. In versions from 38.0.0 to before 38.0.3, the implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a...

CVE-2025-62711 Wasmtime vulnerable to segfault when using component resources

Wasmtime is a runtime for WebAssembly. In versions from 38.0.0 to before 38.0.3, the implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a...

CVE-2025-62711 Wasmtime vulnerable to segfault when using component resources

Wasmtime is a runtime for WebAssembly. In versions from 38.0.0 to before 38.0.3, the implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a...

CVE-2025-62711

Wasmtime (WebAssembly runtime) versions 38.0.0–38.0.2 contain a bug in the component-model host-to-wasm trampolines that can crash the host (segfault or assert) when a component is carefully crafted and invoked in a specific way. This issue is fixed in Wasmtime 38.0.3; there are no known workarou...

CVE-2025-62711: Improper Handling of Exceptional Conditions

Wasmtime is a runtime for WebAssembly. In versions from 38.0.0 to before 38.0.3, the implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a...

wasmtime 安全漏洞

wasmtime is a lightweight WebAssembly runtime open-sourced by the Bytecode Alliance. A security vulnerability exists in wasmtime version 38.0.0 through versions prior to 38.0.3, which stems from a flaw in the host-to-wasm springboard implementation associated with the component model, which could...

wasmtime:wast_tests: Crash in wasmtime::runtime::func::invoke_wasm_and_catch_traps::h953b03e393d1c21c

Project: https://github.com/bytecodealliance/wasmtime.git Detailed Report: https://oss-fuzz.com/testcase?key=5050467068739584 Project: wasmtime Fuzzing Engine: libFuzzer Fuzz Target: wasttests Job Type: libfuzzerasanwasmtime Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0x790b9d5e34a...

PYSEC-2025-268

Wasmtime is a runtime for WebAssembly. Wasmtime 37.0.0 and 37.0.1 have memory leaks in the C/C++ API when using bindings for the anyref or externref WebAssembly values. This is caused by a regression introduced during the development of 37.0.0 and all prior versions of Wasmtime are unaffected. If...