CVE-2026-119134
Medium · 6.2CVSS
6.2
EPSS
0.2%
Published
Oct 29, 2026
CISA due date
—
The record
Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 caps component-model resource handle tables only per component instance and does not charge handle allocations to any ResourceLimiter or StoreLimits. A malicious guest can repeatedly call resource.new and instantiate sub-components to exceed the per-instance cap many times over, causing unbounded host memory growth.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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