GHSA-852M-CVVP-9P4W Wasmtime WASI implementations are vulnerable to guest-controlled resource exhaustion

Impact Wasmtime's implementation of WASI host interfaces are susceptible to guest-controlled resource exhaustion on the host. Wasmtime did not appropriately place limits on resource allocations requested by the guests. This serves as a Denial of Service vector where a guest can induce a range of...

Wasmtime is vulnerable to panic when dropping a `[Typed]Func::call_async` future

The affected versions of Wasmtime can panic if the host embedder drops the future returned by wasmtime::component::TypedFunc::callasync before it resolves. Details Starting with Wasmtime 39.0.0, the component-model-async feature became the default, which brought with it a new implementation of...

GHSA-XJHV-V822-PF94 Wasmtime is vulnerable to panic when dropping a `[Typed]Func::call_async` future

The affected versions of Wasmtime can panic if the host embedder drops the future returned by wasmtime::component::TypedFunc::callasync before it resolves. Details Starting with Wasmtime 39.0.0, the component-model-async feature became the default, which brought with it a new implementation of...

Guest-controlled resource exhaustion in WASI implementations

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-852m-cvvp-9p4w For more information see the GitHub-hosted security advisory...

Panic adding excessive fields to a `wasi:http/types.fields` instance

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-243v-98vx-264h For more information see the GitHub-hosted security advisory...

Panic when dropping a `[Typed]Func::call_async` future

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-xjhv-v822-pf94 For more information see the GitHub-hosted security advisory...

RUSTSEC-2026-0020 Guest-controlled resource exhaustion in WASI implementations

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-852m-cvvp-9p4w For more information see the GitHub-hosted security advisory...

RUSTSEC-2026-0021 Panic adding excessive fields to a `wasi:http/types.fields` instance

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-243v-98vx-264h For more information see the GitHub-hosted security advisory...

RUSTSEC-2026-0022 Panic when dropping a `[Typed]Func::call_async` future

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-xjhv-v822-pf94 For more information see the GitHub-hosted security advisory...

wasmtime 安全漏洞

Wasmtime is a lightweight WebAssembly runtime open source by the Bytecode Alliance. Versions of Wastime prior to 24.0.6, 36.0.6, 4.0.04, 41.0.4, and 42.0.0 contain security vulnerabilities. These vulnerabilities stem from the wasi:http/types Fields resource implementation, where excessive header...

PT-2026-21804

Name of the Vulnerable Software and Affected Versions Wasmtime versions 39.0.0 through 41.0.3 Description Wasmtime, a runtime for WebAssembly, can experience a panic when the host embedder drops the future returned by wasmtime::component::TypedFunc::call async before it resolves, and then calls t...

wasmtime 安全漏洞

Wasmtime is a lightweight WebAssembly runtime open source by the Bytecode Alliance. Versions of Wastime prior to 24.0.6, 36.0.6, 4.0.04, 41.0.4, and 42.0.0 contain security vulnerabilities. These vulnerabilities stem from the lack of proper restrictions on resource allocation for guest machine...

wasmtime 安全漏洞

Wasmtime is a lightweight WebAssembly runtime open source by the Bytecode Alliance. There is a security vulnerability in Wastime, which stems from a defect in the implementation of TypedFunc::callasync when the component-model-async feature is enabled by default. This could lead to a kernel crash...

OSV-2026-292 UNKNOWN WRITE in <wasmtime::runtime::func::Func>::call_unchecked_raw::<

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=486503337 Crash type: UNKNOWN WRITE Crash state: ::calluncheckedraw::::queuecall...

GHSA-434X-W66G-QW3R vulnerabilities

Vulnerabilities for packages: efs-utils, parseable, wizer, zellij, wasmcloud, linkerd-extension-init, rustup, wash, deno, linkerd2, atuin, oranda, topgrade, berg, uv, py3-xet-core, sqlx, zola, mountpoint-s3, geckodriver, linkerd2-proxy, zizmor, pixi, cargo-audit, buck2, pgcat, wasmtime, xh, yazi,...

CVE-2026-25541 vulnerabilities

Vulnerabilities for packages: efs-utils, parseable, wizer, zellij, wasmcloud, linkerd-extension-init, rustup, wash, deno, linkerd2, atuin, oranda, topgrade, berg, uv, py3-xet-core, sqlx, zola, mountpoint-s3, geckodriver, linkerd2-proxy, zizmor, pixi, cargo-audit, buck2, pgcat, wasmtime, xh, yazi,...

CVE-2026-25541 vulnerabilities

Vulnerabilities for packages: fnm, ztunnel-fips, linkerd-await, qdrant, zed, linkerd2-cni-plugin, wasmcloud, ztunnel, rustup, wizer, helix, pixi, mountpoint-s3, parseable, efs-utils, yazi, sqlx, wash, zizmor, atuin, bootc, wadm, shadowsocks-rust, geckodriver, topgrade, buck2, mdbook, uv, berg,...

GHSA-434X-W66G-QW3R vulnerabilities

Vulnerabilities for packages: fnm, ztunnel-fips, linkerd-await, qdrant, zed, linkerd2-cni-plugin, wasmcloud, ztunnel, rustup, wizer, helix, pixi, mountpoint-s3, parseable, efs-utils, yazi, sqlx, wash, zizmor, atuin, bootc, wadm, shadowsocks-rust, geckodriver, topgrade, buck2, mdbook, uv, berg,...

CVE-2026-24116

Wasmtime is a runtime for WebAssembly. Starting in version 29.0.0 and prior to version 36.0.5, 40.0.3, and 41.0.1, on x86-64 platforms with AVX, Wasmtime's compilation of the f64.copysign WebAssembly instruction with Cranelift may load 8 more bytes than is necessary. When signals-based-traps are...

AZL-75533 CVE-2026-24116 affecting package rust 1.75.0-24

Wasmtime is a runtime for WebAssembly. Starting in version 29.0.0 and prior to version 36.0.5, 40.0.3, and 41.0.1, on x86-64 platforms with AVX, Wasmtime's compilation of the f64.copysign WebAssembly instruction with Cranelift may load 8 more bytes than is necessary. When signals-based-traps are...