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RUSTSEC-2026-0424GHSA-6FR9-XMW9-5352

Unchecked memory usage in transferring borrowed resources between components

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 36.0.20, 48.0.8, 49.0.5, 50.0.1
None on Exploit-DB, Metasploit or GitHub

Summary

Wasmtime, a WebAssembly runtime used to run WebAssembly components, is affected by this vulnerability. The flaw involves unchecked memory usage when transferring borrowed resources between components, which could lead to excessive memory consumption.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-6fr9-xmw9-5352 For more information see the GitHub-hosted security advisory.

Timeline

  1. Advisory published
  2. Record last updated
  3. First seen by cve.now

Affected versions

  • wasmtimecrates.io

    From 0.0.0-0 · fixed in 36.0.20; From 37.0.0 · fixed in 48.0.8; From 49.0.0 · fixed in 49.0.5; From 50.0.0 · fixed in 50.0.1

References 3

crates.io

rustsec.org

GitHub · bytecodealliance/wasmtime