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Wasmtime can panic when adding excessive fields to a `wasi:http/types.fields` instance

🗓️ 24 Feb 2026 21:08:06Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 5 Views

Wasmtime panics on excess wasi:http/types.fields entries; patched to trap in recent releases.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-27572
24 Feb 202621:31
attackerkb
Chainguard
CVE-2026-27572 vulnerabilities
25 Feb 202619:29
cgr
Circl
CVE-2026-27572
25 Feb 202601:07
circl
CNNVD
wasmtime 安全漏洞
24 Feb 202600:00
cnnvd
CVE
CVE-2026-27572
24 Feb 202621:31
cve
Cvelist
CVE-2026-27572 Wasmtime can panic when adding excessive fields to a `wasi:http/types.fields` instance
24 Feb 202621:31
cvelist
Debian CVE
CVE-2026-27572
24 Feb 202621:31
debiancve
NVD
CVE-2026-27572
24 Feb 202622:16
nvd
OSV
CGA-4C8Q-MJ8W-CJWX
25 Feb 202617:30
osv
OSV
CVE-2026-27572 Wasmtime can panic when adding excessive fields to a `wasi:http/types.fields` instance
24 Feb 202621:31
osv
Rows per page
Vulners
Node
bytecodealliancewasmtimeRange37.0.040.0.4rust
OR
bytecodealliancewasmtimeRange25.0.036.0.6rust
OR
bytecodealliancewasmtimeRange<24.0.6rust

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27 Feb 2026 20:25Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.17.5
CVSS 46.9
EPSS0.00466
SSVC
5