RUSTSEC-2026-0352GHSA-M9F7-9W4P-GV38
Filesystem sandbox escape when renaming symlinks with trailing slashes
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 36.0.18, 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 by a flaw in how it handles renaming symbolic links that have trailing slashes in their paths. This could allow code running inside the sandbox to escape the filesystem restrictions and access or modify files outside the sandboxed directories.
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-m9f7-9w4p-gv38 For more information see the GitHub-hosted security advisory.
Timeline
- Advisory published
- Record last updated
Affected versions
- wasmtime-wasicrates.io
From 0.0.0-0 · fixed in 36.0.18; From 37.0.0 · fixed in 48.0.6; From 49.0.0 · fixed in 49.0.3