{"id":"EUVD-2026-112393","enisaUuid":"9db9e727-aeee-3f1e-9aff-8c1c3ee23299","description":"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.","datePublished":"Oct 28, 2026, 6:59:56 PM","dateUpdated":"Oct 28, 2026, 6:59:56 PM","baseScore":8.8,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L","references":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m9f7-9w4p-gv38\nhttps://www.vulncheck.com/advisories/wasmtime-before-36.0.18-37.0.0-before-48.0.6-and-49.0.0-before-49.0.3-sandbox-escape-via-symlink-rename\n","aliases":"CVE-2026-118688\nGHSA-63fr-xrxj-8wrx\n","assigner":"VulnCheck","epss":0.24,"enisaIdProduct":[{"id":"30a15ea6-d502-3ebd-b89d-9ae4d0d8c9c2","product":{"name":"wasmtime","vendor":{"name":"bytecodealliance"}},"product_version":"0 \u003c36.0.18"},{"id":"34575637-a404-3d17-a896-5e2144bc1367","product":{"name":"wasmtime","vendor":{"name":"bytecodealliance"}},"product_version":"49.0.0 \u003c49.0.3"},{"id":"5964bd3e-44e4-3412-b46e-58291cea83c8","product":{"name":"wasmtime","vendor":{"name":"bytecodealliance"}},"product_version":"37.0.0 \u003c48.0.6"}],"enisaIdVendor":[{"id":"4f45d9a7-80d2-380f-9443-3ddaa4705226","vendor":{"name":"bytecodealliance"}}],"enisaIdVulnerability":[{"id":"b218f92d-bc7d-32f5-8616-037a1fac1f12","vulnerability":{"id":"CVE-2026-118688","description":"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.","datePublished":"Oct 28, 2026, 6:59:56 PM","dateUpdated":"Oct 28, 2026, 6:59:56 PM","status":"PUBLISHED","baseScore":8.8,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L","references":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m9f7-9w4p-gv38\nhttps://www.vulncheck.com/advisories/wasmtime-before-36.0.18-37.0.0-before-48.0.6-and-49.0.0-before-49.0.3-sandbox-escape-via-symlink-rename\n","enisa_id":"EUVD-2026-112393\n","assigner":"VulnCheck","epss":0.24,"dataProcessed":"Nov 4, 2026, 7:15:20 AM","vulnerabilityProduct":[{"id":"1f6ced32-dc70-39dd-b30a-45661e726795","product":{"name":"wasmtime","vendor":{"name":"bytecodealliance"}},"product_version":"49.0.0 \u003c49.0.3"},{"id":"9d4bfd9a-a8ff-3501-9352-2577d2224c98","product":{"name":"wasmtime","vendor":{"name":"bytecodealliance"}},"product_version":"37.0.0 \u003c48.0.6"},{"id":"dac2e20e-a81a-3526-ab7d-8f4d7c220cd5","product":{"name":"wasmtime","vendor":{"name":"bytecodealliance"}},"product_version":"0 \u003c36.0.18"}],"vulnerabilityVendor":[{"id":"6140842f-c004-3aca-8c5b-be5f301ca0ae","vendor":{"name":"bytecodealliance"}}]}},{"id":"e1dfe657-1785-339e-a66a-8c205a36b6ae","vulnerability":{"id":"GHSA-63fr-xrxj-8wrx","description":"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.","datePublished":"Oct 28, 2026, 9:31:16 PM","dateUpdated":"Oct 28, 2026, 9:31:17 PM","baseScore":0.0,"references":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m9f7-9w4p-gv38\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-118688\nhttps://www.vulncheck.com/advisories/wasmtime-before-36.0.18-37.0.0-before-48.0.6-and-49.0.0-before-49.0.3-sandbox-escape-via-symlink-rename\n","enisa_id":"EUVD-2026-112393\n","aliases":"CVE-2026-118688\nGHSA-63fr-xrxj-8wrx\n","epss":0.0,"dataProcessed":"Nov 4, 2026, 7:03:17 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}}],"enisaIdAdvisory":[]}