{"schema":"threatline.record/2","record":{"id":"CVE-2026-115390","aliases":["GHSA-m63x-6p34-q65x"],"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.","categories":["Unclassified"],"product":"wasmtime","vendor":"bytecodealliance","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115390","source_modified_at":"2026-10-23T15:00:44.401Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"wasmtime","vendor":"bytecodealliance","versions":[{"lessThan":"48.0.3","status":"affected","version":"47.0.0","versionType":"semver"},{"status":"unaffected","version":"48.0.3","versionType":"semver"},{"lessThan":"49.0.1","status":"affected","version":"49.0.0","versionType":"semver"},{"status":"unaffected","version":"49.0.1","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"GitHub Advisory Database","source_url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m63x-6p34-q65x","source_modified_at":"2026-10-23T18:32:07Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"ecosystem":"rust","name":"wasmtime"},"range":">= 47.0.0, < 48.0.3, 49.0.0"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115390","source_modified_at":"2026-10-23T15:00:44.401Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"wasmtime","ecosystem":null},"version":"48.0.3","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115390","source_modified_at":"2026-10-23T15:00:44.401Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"wasmtime","ecosystem":null},"version":"49.0.1","basis":"first unaffected version stated in the CVE record"},{"source":"GitHub Advisory Database","source_url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m63x-6p34-q65x","source_modified_at":"2026-10-23T18:32:07Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"ecosystem":"rust","name":"wasmtime"},"version":"48.0.3"},{"source":"GitHub Advisory Database","source_url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m63x-6p34-q65x","source_modified_at":"2026-10-23T18:32:07Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"ecosystem":"rust","name":"wasmtime"},"version":"49.0.1"}],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00184,"percentile":0.07587,"score_date":"2026-10-23"},"published_at":"2026-10-22T19:13:55.910Z","modified_at":"2026-10-23T18:32:07Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-115390","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T15:00:44.401Z"},{"source":"GitHub Advisory Database","url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m63x-6p34-q65x","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-23T18:32:07Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-115390","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-m63x-6p34-q65x","tags":["vendor-advisory"]},{"source":"CVE List","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","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-23T14:48:31.982167Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-23T18:32:07Z","content_hash":"f27a552eed9c536f2d1c92a04aa62caaafabdeb1b4638d027e41b944e06ef176"}}