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CVE-2026-34945

🗓️ 09 Apr 2026 19:16:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 3 Views

Wasmtime Winch miscomputes 64-bit table size, exposing host stack data to guests; fixed in 36.0.7, 42.0.2, 43.0.1.

Related
Packages
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
CVE
CVE-2026-34945
9 Apr 202618:40
cve
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
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu26.04anyrust-wasmtime0rust-wasmtime_0_any.deb
Ubuntu24.04anyrust-wasmtime0rust-wasmtime_0_any.deb
Ubuntu25.10anyrust-wasmtime0rust-wasmtime_0_any.deb

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16 Apr 2026 02:31Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.16.5
CVSS 42.3
EPSS0.00014
SSVC
3