RUSTSEC-2026-0355GHSA-63H4-6CX9-PJFJ
Panic viewing component model stream or future as the wrong type
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 48.0.6, 49.0.3
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Wasmtime, the WebAssembly runtime, is affected when using its component model to handle streams or futures. Exploiting this flaw can cause the runtime to panic, crashing the host process that embeds Wasmtime.
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-63h4-6cx9-pjfj For more information see the GitHub-hosted security advisory.
Timeline
- Advisory published
- Record last updated
Affected versions
- wasmtimecrates.io
From 46.0.0 · fixed in 48.0.6; From 49.0.0 · fixed in 49.0.3