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Wasmtime has improperly masked return value from `table.grow` with Winch compiler backend

🗓️ 10 Apr 2026 15:32:49Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 34 Views

Wasmtime Winch backend mis-typed table.grow result for 32-bit tables, risking memory access.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-35186
9 Apr 202618:54
–attackerkb
cgr
Chainguard
CVE-2026-35186 vulnerabilities
22 Apr 202607:18
–cgr
circl
Circl
CVE-2026-35186
13 Apr 202623:20
–circl
cnnvd
CNNVD
WasmTime security vulnerability
9 Apr 202600:00
–cnnvd
cve
CVE
CVE-2026-35186
9 Apr 202618:54
–cve
cvelist
Cvelist
CVE-2026-35186 Wasmtime has an improperly masked return value from `table.grow` with Winch compiler backend
9 Apr 202618:54
–cvelist
debiancve
Debian CVE
CVE-2026-35186
9 Apr 202618:54
–debiancve
euvd
EUVD
EUVD-2026-21037
10 Apr 202615:32
–euvd
mend
Mend
CVE-2026-35186
9 Apr 202618:54
–mend
nvd
NVD
CVE-2026-35186
9 Apr 202619:16
–nvd
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Vulners
Node
OR
bytecodealliancewasmtimeRange37.0.0–42.0.2rust
bytecodealliancewasmtimeRange25.0.0–36.0.7rust

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10 Apr 2026 15:32Current
5.4Medium risk
Vulners AI Score5.4
CVSS 46.1
CVSS 3.17.5
EPSS0.00214
SSVC
34