CVE-2026-115392 (GCVE-0-2026-115392)

Vulnerability from cvelistv5 – Published: 2026-10-22 19:13 – Updated: 2026-10-22 19:13
VLAI
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 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.
Severity
8.8 (High)
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
7.9 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6762 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
bytecodealliance wasmtime Affected: 0 , < 24.0.13 (semver)
Unaffected: 24.0.13 (semver)
Affected: 25.0.0 , < 36.0.14 (semver)
Unaffected: 36.0.14 (semver)
Affected: 37.0.0 , < 46.0.3 (semver)
Unaffected: 46.0.3 (semver)
Affected: 47.0.0 , < 47.0.4 (semver)
Unaffected: 47.0.4 (semver)
    cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*
    cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*
    cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*
    cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-20 00:00
Show details on NVD website
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{
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      "metrics": [
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      "problemTypes": [
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          "name": "GitHub Security Advisory (GHSA-vqjp-4c8c-hfgg)",
          "tags": [
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          "url": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-vqjp-4c8c-hfgg"
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          "name": "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": [
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        }
      ],
      "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",
      "x_generator": {
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  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-115392",
    "datePublished": "2026-10-22T19:13:58.512Z",
    "dateReserved": "2026-10-22T11:27:18.001Z",
    "dateUpdated": "2026-10-22T19:13:58.512Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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                "packageURL": "pkg:cargo/wasmtime",
                "product": "wasmtime",
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                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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}



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