CVE-2026-118688 — Vulnerability intelligence
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Published:
- CVSS
- 8.8
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
wasmtime-wasi in Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 re-appends a trailing slash to rename source paths, causing renameat on macOS and FreeBSD hosts to follow directory symlinks. A guest with sandbox write access can rename a relative symlink such as "up/" to move host directories into its sandbox and read or write them.