CVE-2026-115390
CVE-2026-115390 · Wasmtime 47.0.0 before 48.0.3 and 49.0.0 before 49.0.1 Fuel Accounting Bypass DoS
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Wasmtime 47.0.0 before 48.0.3 and 49.0.0 before 49.0.1 contains a fuel accounting flaw in Cranelift-compiled call_ref and try_table catch paths. Malicious guests can reset consumed fuel after calls to run exponentially long on linear fuel, evading timeouts and periodic yields for denial of service.
CVSS 6.9 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Affected products and versions
wasmtime
- Versions
- ≥ 47.0.0, < 48.0.3: Affected (semver)
- 48.0.3: Not affected (semver)
- ≥ 49.0.0, < 49.0.1: Affected (semver)
- 49.0.1: Not affected (semver)
Update to 48.0.3; Update to 49.0.1