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CVE-2026-34942

🗓️ 09 Apr 2026 18:32:56Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 17 Views

Wasmtime misaligned utf sixteen transcoding can trigger host panics and DoS; fixed in newer versions.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-34942
9 Apr 202618:32
attackerkb
Chainguard
CVE-2026-34942 vulnerabilities
22 Apr 202607:18
cgr
CNNVD
wasmtime 输入验证错误漏洞
9 Apr 202600:00
cnnvd
Cvelist
CVE-2026-34942 Wasmtime panics when transcoding misaligned utf-16 strings
9 Apr 202618:32
cvelist
Debian CVE
CVE-2026-34942
9 Apr 202618:32
debiancve
EUVD
EUVD-2026-20990
9 Apr 202620:22
euvd
Github Security Blog
Wasmtime: Panic when transcoding misaligned utf-16 strings
9 Apr 202620:22
github
NVD
CVE-2026-34942
9 Apr 202619:16
nvd
OPENSUSE Linux
Security update for tree-sitter (important)
19 May 202600:00
opensuse
OSV
CGA-7F8X-XJFG-9CQ8
22 Apr 202605:00
osv
Rows per page
NVD
Vulners
Node
bytecodealliancewasmtimeRange<24.0.7rust
OR
bytecodealliancewasmtimeRange25.0.036.0.7rust
OR
bytecodealliancewasmtimeRange37.0.042.0.2rust
OR
bytecodealliancewasmtimeRange43.0.043.0.1rust
[
  {
    "vendor": "bytecodealliance",
    "product": "wasmtime",
    "versions": [
      {
        "version": "< 24.0.7",
        "status": "affected"
      },
      {
        "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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17 Jun 2026 10:39Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16.5
CVSS 45.9
EPSS0.00354
SSVC
17