{"id":"CVE-2026-115392","title":"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","summary":"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 Linu…","severity":"high","cvss":7.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L","cvssSource":"cna","cwe":["CWE-61"],"vendor":"bytecodealliance","product":"wasmtime","affected":["wasmtime < 24.0.13","wasmtime >= 25.0.0 < 36.0.14","wasmtime >= 37.0.0 < 46.0.3","wasmtime >= 47.0.0 < 47.0.4"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T19:13:58.512Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115392","references":[{"url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-vqjp-4c8c-hfgg","label":"GitHub Security Advisory (GHSA-vqjp-4c8c-hfgg)"},{"url":"https://www.vulncheck.com/advisories/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","label":"VulnCheck Advisory: 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"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T22:00:50.409Z","slug":"CVE-2026-115392","body":"## Overview\n\nWasmtime 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.\n\n## Affected\n\n- `wasmtime < 24.0.13`\n- `wasmtime >= 25.0.0 < 36.0.14`\n- `wasmtime >= 37.0.0 < 46.0.3`\n- `wasmtime >= 47.0.0 < 47.0.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":43.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}