Symlink Following Affecting rust-wasmtime package, versions *


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.24% (15th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-RUSTWASMTIME-21664597
  • published24 Oct 2026
  • disclosed22 Oct 2026

Introduced: 22 Oct 2026

NewCVE-2026-115392  (opens in a new tab)
CWE-61  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable rust-wasmtime.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rust-wasmtime package and not the rust-wasmtime package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

Wasmtime before 24.0.13, 25.0.0 before 36.0.14, 37.0.0 before 46.0.3, and 47.0.0 before 47.0.4 allows a filesystem sandbox escape in wasmtime-wasi because its cap-std dependency mishandles symlinks with trailing slashes on macOS and Linux kernels lacking openat2. A guest with write access to any sandboxed directory can read and write any host-accessible file, and read-only guests may read host files via preexisting symlinks.

CVSS Base Scores

version 3.1