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EUVD-2026-21031

🗓️ 10 Apr 2026 15:31:18Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 2 Views

Wasmtime Winch bug allowed guest WebAssembly to access host memory outside sandbox.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-34987
9 Apr 202618:48
attackerkb
Chainguard
CVE-2026-34987 vulnerabilities
22 Apr 202607:18
cgr
Circl
CVE-2026-34987
9 Apr 202616:51
circl
CNNVD
wasmtime 缓冲区错误漏洞
9 Apr 202600:00
cnnvd
CVE
CVE-2026-34987
9 Apr 202618:48
cve
Cvelist
CVE-2026-34987 Wasmtime with Winch compiler backend on aarch64 may allow a sandbox-escaping memory access
9 Apr 202618:48
cvelist
Debian CVE
CVE-2026-34987
9 Apr 202618:48
debiancve
Github Security Blog
Wasmtime with Winch compiler backend on aarch64 may allow a sandbox-escaping memory access
10 Apr 202615:31
github
NVD
CVE-2026-34987
9 Apr 202619:16
nvd
OPENSUSE Linux
Security update for tree-sitter (important)
19 May 202600:00
opensuse
Rows per page
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      {
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        "vendor": {
          "name": "bytecodealliance"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "57b4303d-0613-39e6-97ab-abab004ea411",
        "product": {
          "name": "wasmtime"
        },
        "product_version": "25.0.0, < 36.0.7"
      },
      {
        "id": "b6fe8a92-8c4c-3805-b8f6-69b14177507e",
        "product": {
          "name": "wasmtime"
        },
        "product_version": "43.0.0, < 44.0.1"
      },
      {
        "id": "cd9ecdcb-69c5-3669-8b59-319458dff0bb",
        "product": {
          "name": "wasmtime"
        },
        "product_version": "37.0.0, < 42.0.2"
      }
    ]
  }
]

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10 Apr 2026 15:31Current
5.8Medium risk
Vulners AI Score5.8
CVSS 49
EPSS0.00278
SSVC
2