medium4.0
CVE-2026-115380
Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains a denial of service vulnerability in the wasmtime-wasi WASI preview 0 poll_one…
Impact
Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains a denial of service vulnerability in the wasmtime-wasi WASI preview 0 poll_oneoff adapter, which performs O(n) host work per subscription without consuming or checking fuel. Malicious guest modules can pass many subscriptions to force long-running host computation that ignores configured fuel limits.
Affected products
| Product | Affected versions |
|---|---|
| Wasmtime | before 36.0.17 |
| 37.0.0 | before 48.0.4 |
| And 49.0.0 | before 49.0.2 |
Versions were read from the advisory text. No structured product data has been published for this record yet.