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[cranelift-codegen] Feature Request: Support for Rust-like Memory Ordering in Atomic IR Instructions in InstBuilder

Status: Open.

#12679 In bytecodealliance/wasmtime;

· ahqsoftwares opened on Feb 26, 2026

Audit WASIp3 implementation for resource exhaustion

wasm-proposal:component-model-asyncIssues related to the WebAssembly Component Model async proposalIssues related to the WebAssembly Component Model async proposal

Status: Open.

#12674 In bytecodealliance/wasmtime;

· alexcrichton opened on Feb 25, 2026

Panic during mutation in gc_ops fuzzer

fuzz-bugBugs found by a fuzzerBugs found by a fuzzer

Status: Open.

#12665 In bytecodealliance/wasmtime;

· alexcrichton opened on Feb 25, 2026

TypeRegistry internal data structures

Status: Open.

#12662 In bytecodealliance/wasmtime;

· fitzgen opened on Feb 24, 2026

Minimal build doesn't include GC (good) but C API doesn't allow creating engine without GC (bad)

wasmtime:c-apiIssues pertaining to the C API.Issues pertaining to the C API.

Status: Open.

#12628 In bytecodealliance/wasmtime;

· effulgentsia opened on Feb 20, 2026

wasmtime::component::bindgen! generated doc-comments have an extra <code>/</code>

Status: Open.

#12591 In bytecodealliance/wasmtime;

· NickLarsenNZ opened on Feb 13, 2026

[wasi-sockets] Inconsistency in udp/send with unspecified remote address

bugIncorrect behavior in the current implementation that needs fixingIncorrect behavior in the current implementation that needs fixing

wasiIssues pertaining to WASIIssues pertaining to WASI

Status: Open.

#12568 In bytecodealliance/wasmtime;

· saulecabrera opened on Feb 11, 2026

[wasi-sockets] Inconsistency with inherited properties

bugIncorrect behavior in the current implementation that needs fixingIncorrect behavior in the current implementation that needs fixing

wasiIssues pertaining to WASIIssues pertaining to WASI

Status: Open.

#12561 In bytecodealliance/wasmtime;

· saulecabrera opened on Feb 10, 2026

Expose memory <code>needs_init</code> on <code>LinearMemory</code>/<code>RuntimeLinearMemory</code>

Status: Open.

#12517 In bytecodealliance/wasmtime;

· d-sonuga opened on Feb 4, 2026

SIGABRT crashes when creating many engines/modules due to GLOBAL_CODE registry address reuse

Status: Open.

#12511 In bytecodealliance/wasmtime;

· zacharywhitley opened on Feb 4, 2026

Cranelift: make load-sinking less implicit in the face of type widening

Status: Open.

#12477 In bytecodealliance/wasmtime;

· cfallin opened on Jan 29, 2026

p3: Inconsistent behavior in sockets/udp send

bugIncorrect behavior in the current implementation that needs fixingIncorrect behavior in the current implementation that needs fixing

wasiIssues pertaining to WASIIssues pertaining to WASI

Status: Open.

#12475 In bytecodealliance/wasmtime;

· saulecabrera opened on Jan 29, 2026