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CVE-2026-115392

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 Sandbox Escape via Trailing Slashes PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
bytecodealliance / wasmtimeaffected 0 before 24.0.13; unaffected 24.0.13; affected 25.0.0 before 36.0.14; unaffected 36.0.14; affected 37.0.0 before 46.0.3; unaffected 46.0.3; affected 47.0.0 before 47.0.4; unaffected 47.0.4

CWE

CWE-61

References