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CVE-2026-34945

🗓️ 09 Apr 2026 18:40:48Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 11 Views

CVE-2026-34945: Wasmtime Winch 64-bit table.size bug leaks host data to guests; fixed.

Related
Detection
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
Cvelist
CVE-2026-34945 Wasmtime leaks host data with 64-bit tables and Winch
9 Apr 202618:40
cvelist
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
NVD
Vulners
Node
bytecodealliancewasmtimeRange25.0.036.0.7rust
OR
bytecodealliancewasmtimeRange37.0.042.0.2rust
OR
bytecodealliancewasmtimeRange43.0.043.0.1rust
[
  {
    "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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20 Apr 2026 18:26Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16.5
CVSS 42.3
EPSS0.00324
SSVC
11