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CVE-2026-34945: Incorrect Conversion between Numeric Types

🗓️ 09 Apr 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Wasmtime Winch compiler 25.0.0-36.0.7/42.0.2/43.0.1 info disclosure via table.size.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-34945
9 Apr 202618:40
–attackerkb
cgr
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CVE-2026-34945 vulnerabilities
22 Apr 202607:18
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cnnvd
CNNVD
wasmtime 安全漏洞
9 Apr 202600:00
–cnnvd
cve
CVE
CVE-2026-34945
9 Apr 202618:40
–cve
cvelist
Cvelist
CVE-2026-34945 Wasmtime leaks host data with 64-bit tables and Winch
9 Apr 202618:40
–cvelist
debiancve
Debian CVE
CVE-2026-34945
9 Apr 202618:40
–debiancve
euvd
EUVD
EUVD-2026-21024
9 Apr 202620:23
–euvd
github
Github Security Blog
Wasmtime has host data leakage with 64-bit tables and Winch
9 Apr 202620:23
–github
nvd
NVD
CVE-2026-34945
9 Apr 202619:16
–nvd
opensuse
OPENSUSE Linux
libtree-sitter0_26-0.26.8-1.1 on GA media (moderate)
23 Apr 202600:00
–opensuse
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20 Apr 2026 00:00Current
6Medium risk
Vulners AI Score6
CVSS 42.3
CVSS 3.16.5
EPSS0.00379
SSVC
0