MEDIUM 6.9 NVD
CVE-2026-119134
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 cha
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.
References
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-q554-3cjc-rx7p
- https://www.vulncheck.com/advisories/wasmtime-before-36.0.18-37.0.0-before-48.0.6-and-49.0
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-10-29 via NVD.
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