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CVE-2026-119133 Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Misaligned VMContext via Exception Tags

🗓️ 29 Oct 2026 15:58:14Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 8 Views

Memory misalignment in Wasmtime VMContext via exception tags causes undefined behavior.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-119133
29 Oct 202617:33
–circl
cve
CVE
CVE-2026-119133
29 Oct 202615:58
–cve
euvd
EUVD
EUVD-2026-113200
29 Oct 202618:30
–euvd
nvd
NVD
CVE-2026-119133
29 Oct 202616:18
–nvd
ptsecurity
Positive Technologies
PT-2026-132364
29 Oct 202600:00
–ptsecurity
vulnrichment
Vulnrichment
CVE-2026-119133 Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Misaligned VMContext via Exception Tags
29 Oct 202615:58
–vulnrichment
[
  {
    "vendor": "bytecodealliance",
    "product": "wasmtime",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:cargo/wasmtime",
    "versions": [
      {
        "version": "47.0.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "48.0.6"
      },
      {
        "version": "48.0.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "49.0.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "49.0.3"
      },
      {
        "version": "49.0.3",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  }
]

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