RUSTSEC-2026-0356GHSA-7V24-42X9-PXF7
Panic on erroneous call-to-host from guest realloc call
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 used to execute untrusted guest code, is affected by this vulnerability. A malicious or buggy guest module making an erroneous host call during a realloc operation can cause the host process to panic, potentially resulting in a denial of service.
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-7v24-42x9-pxf7 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