MEDIUM 6.9 NVD
CVE-2026-119137
Wasmtime 42.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a stack overflow vulnerability that allows guests to crash the host through recursive type drops
Wasmtime 42.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a stack overflow vulnerability that allows guests to crash the host through recursive type drops. Guests can define a long chain of recursive types so that removing the top-level type triggers unbounded recursive drops, exhausting the host stack.
References
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-wjc8-633q-pwxr
- https://www.vulncheck.com/advisories/wasmtime-42.0.0-before-48.0.6-and-49.0.0-before-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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