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Wasmtime has a possible panic when lifting `flags` component value

🗓️ 09 Apr 2026 20:22:34Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 6 Views

Wasmtime may panic lifting flags-typed component values into Val, risking Denial of Service; patches exist.

Related
Detection
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
CVE
CVE-2026-34943
9 Apr 202618:36
cve
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
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
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Vulners
Node
OR
bytecodealliancewasmtimeRange37.0.042.0.2rust
OR
bytecodealliancewasmtimeRange25.0.036.0.7rust
OR
bytecodealliancewasmtimeRange<24.0.7rust

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24 Apr 2026 21:03Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.5
CVSS 45.6
EPSS0.00324
SSVC
6