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Wasmtime has a leak in WASIp1 `fd_renumber` implementation

🗓️ 26 Aug 2026 14:30:10Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 3 Views

Wasmtime WASIp1 fd_renumber leaks host file descriptors enabling resource exhaustion.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-54786
1 Jul 202620:12
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alpinelinux
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CVE-2026-54786
1 Jul 202620:12
alpinelinux
circl
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CVE-2026-54786
2 Jul 202612:53
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cve
CVE
CVE-2026-54786
1 Jul 202620:12
cve
cvelist
Cvelist
CVE-2026-54786 Wasmtime: Leak in WASIp1 `fd_renumber` implementation
1 Jul 202620:12
cvelist
debiancve
Debian CVE
CVE-2026-54786
1 Jul 202620:12
debiancve
euvd
EUVD
EUVD-2026-41136
26 Aug 202614:30
euvd
nvd
NVD
CVE-2026-54786
1 Jul 202621:17
nvd
osv
OSV
DEBIAN-CVE-2026-54786
1 Jul 202621:17
osv
osv
OSV
GHSA-3P27-QVP9-27QF Wasmtime has a leak in WASIp1 `fd_renumber` implementation
26 Aug 202614:30
osv
Rows per page
Vulners
Node
OR
wasmtime-wasiRange37.0.044.0.3rust
wasmtime-wasiRange25.0.036.0.11rust
wasmtime-wasiRange45.0.045.0.2rust
wasmtime-wasiRange<24.0.10rust

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26 Aug 2026 14:31Current
5.2Medium risk
Vulners AI Score5.2
CVSS 3.15
CVSS 42.3
EPSS0.00367
SSVC
3