RUSTSEC-2026-0364GHSA-P79W-PV2R-29QP
Exception tags can cause host data structures to be unaligned
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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, a WebAssembly runtime used to execute WebAssembly code in other software, is affected by this vulnerability. The flaw can cause host data structures to become misaligned when exception tags are used, potentially leading to memory-related errors or crashes in the host application.
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-p79w-pv2r-29qp For more information see the GitHub-hosted security advisory.
Timeline
- Advisory published
- Record last updated
Affected versions
- wasmtimecrates.io
From 47.0.0 · fixed in 48.0.6; From 49.0.0 · fixed in 49.0.3