{"id":"CVE-2026-115390","summary":"Wasmtime 47.0.0 before 48.0.3 and 49.0.0 before 49.0.1 Fuel Accounting Bypass DoS","details":"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.","aliases":["GHSA-m63x-6p34-q65x","RUSTSEC-2026-0315"],"modified":"2026-10-28T02:30:25.577955022Z","published":"2026-10-22T19:13:55.910Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115390.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-400"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115390.json"},{"type":"ADVISORY","url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m63x-6p34-q65x"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115390"},{"type":"ADVISORY","url":"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/bytecodealliance/wasmtime","events":[{"introduced":"39d67168cdb6911ffdc961381314b6fed62e3c93"},{"fixed":"ebf20ab7cbf35fa3fbd8202562017fda6a541021"},{"introduced":"17830bd3c0331d920a8aa38846eebc4d46d98c23"},{"fixed":"46c23a87dac1465986a8ad53ba6a7ae49372857b"}],"database_specific":{"extracted_events":[{"strategy":"StandardRange","range":[{"introduced":"47.0.0"},{"fixed":"48.0.3"}],"source":"AFFECTED_FIELD"},{"range":[{"introduced":"49.0.0"},{"fixed":"49.0.1"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"}]}}],"versions":["v49.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-115390.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"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"}]}