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CVE-2026-34945 Wasmtime leaks host data with 64-bit tables and Winch

🗓️ 09 Apr 2026 18:40:48Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 14 Views

CVE-2026-34945: Wasmtime Winch 64-bit tables leak host stack data to guests; fixed.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-34945
9 Apr 202618:40
attackerkb
Chainguard
CVE-2026-34945 vulnerabilities
22 Apr 202607:18
cgr
CNNVD
wasmtime 安全漏洞
9 Apr 202600:00
cnnvd
CVE
CVE-2026-34945
9 Apr 202618:40
cve
Debian CVE
CVE-2026-34945
9 Apr 202618:40
debiancve
EUVD
EUVD-2026-21024
9 Apr 202620:23
euvd
Github Security Blog
Wasmtime has host data leakage with 64-bit tables and Winch
9 Apr 202620:23
github
NVD
CVE-2026-34945
9 Apr 202619:16
nvd
OPENSUSE Linux
libtree-sitter0_26-0.26.8-1.1 on GA media (moderate)
23 Apr 202600:00
opensuse
OPENSUSE Linux
Security update for tree-sitter (important)
19 May 202600:00
opensuse
Rows per page
[
  {
    "vendor": "bytecodealliance",
    "product": "wasmtime",
    "versions": [
      {
        "version": ">= 25.0.0, < 36.0.7",
        "status": "affected"
      },
      {
        "version": ">= 37.0.0, < 42.0.2",
        "status": "affected"
      },
      {
        "version": ">= 43.0.0, < 44.0.1",
        "status": "affected"
      }
    ]
  }
]

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