{"id":"CVE-2026-115390","revision":"2e8463337f0f4b34bac533e3c73e22ce","records":[{"revision":"2e8463337f0f4b34bac533e3c73e22ce","observedAt":"2026-10-23T16:48:20.594+00:00","statement":{"source":"cve-program","id":"CVE-2026-115390","aliases":[],"title":"Wasmtime 47.0.0 before 48.0.3 and 49.0.0 before 49.0.1 Fuel Accounting Bypass DoS","description":"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.","state":0,"publishedAt":"2026-10-22T19:13:55.91+00:00","modifiedAt":"2026-10-23T15:00:44.401+00:00","affected":[{"ecosystem":"Vendor product","name":"wasmtime","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"bytecodealliance\",\n                    \"product\": \"wasmtime\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:cargo/wasmtime\",\n                    \"versions\": [\n                        {\n                            \"version\": \"47.0.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"48.0.3\"\n                        },\n                        {\n                            \"version\": \"48.0.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"49.0.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"49.0.1\"\n                        },\n                        {\n                            \"version\": \"49.0.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","score":5.7,"severity":"MEDIUM"}],"references":["https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m63x-6p34-q65x","https://www.vulncheck.com/advisories/wasmtime-47.0.0-before-48.0.3-and-49.0.0-before-49.0.1-fuel-accounting-bypass-dos"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115390","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-115390","identifiers":["CVE-2026-115390"]},"retained":false,"historicalAffected":[]}],"coverage":[]}