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Wasmtime has host panic when Winch compiler executes `table.fill`

🗓️ 09 Apr 2026 20:23:21Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 6 Views

Winch table.fill can panic the host from incorrect table indexing; update Wasmtime to patched versions.

Related
Detection
Refs
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Family
ATTACKERKB
CVE-2026-34946
9 Apr 202618:43
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CVE-2026-34946 vulnerabilities
22 Apr 202607:18
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CVE-2026-34946
20 Apr 202619:17
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CNNVD
wasmtime 安全漏洞
9 Apr 202600:00
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CVE-2026-34946
9 Apr 202618:43
cve
Cvelist
CVE-2026-34946 Wasmtime's host panics when Winch compiler executes `table.fill`
9 Apr 202618:43
cvelist
Debian CVE
CVE-2026-34946
9 Apr 202618:43
debiancve
EUVD
EUVD-2026-21025
9 Apr 202620:23
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NVD
CVE-2026-34946
9 Apr 202619:16
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OPENSUSE Linux
Security update for tree-sitter (important)
19 May 202600:00
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Vulners
Node
OR
bytecodealliancewasmtimeRange37.0.042.0.2rust
OR
bytecodealliancewasmtimeRange25.0.036.0.7rust

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24 Apr 2026 21:03Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
CVSS 45.9
EPSS0.00018
6