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CVE-2026-34943

🗓️ 09 Apr 2026 18:36:51Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 11 Views

Wasmtime panics lifting flags typed component model values into Val; DoS risk; fixed in 24.0.7, 36.0.7, 42.0.2, and 43.0.1.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-34943
9 Apr 202618:36
attackerkb
Chainguard
CVE-2026-34943 vulnerabilities
22 Apr 202607:18
cgr
Circl
CVE-2026-34943
20 Apr 202619:17
circl
CNNVD
wasmtime 安全漏洞
9 Apr 202600:00
cnnvd
Cvelist
CVE-2026-34943 Wasmtime panics when lifting `flags` component value
9 Apr 202618:36
cvelist
Debian CVE
CVE-2026-34943
9 Apr 202618:36
debiancve
EUVD
EUVD-2026-21022
9 Apr 202620:22
euvd
Github Security Blog
Wasmtime has a possible panic when lifting `flags` component value
9 Apr 202620:22
github
NVD
CVE-2026-34943
9 Apr 202619:16
nvd
OPENSUSE Linux
libtree-sitter0_26-0.26.8-2.1 on GA media (moderate)
9 May 202600:00
opensuse
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
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
CVSS 45.6
EPSS0.00324
SSVC
11