{"id":"CVE-2026-115385","summary":"Wasmtime 46.0.0 before 48.0.4 and 49.0.0 before 49.0.2 Host Panic via WASIp3 Timestamps","details":"Wasmtime 46.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a denial of service vulnerability in the wasmtime-wasi WASIp3 implementation that allows guests to abort the Unix host process. Guests with mutable preopened directory access can call set-times or set-times-at with negative seconds timestamps before the epoch, triggering an assertion failure that crashes the host.","aliases":["GHSA-mr2v-56j5-cmfc","RUSTSEC-2026-0324"],"modified":"2026-10-28T02:30:53.357859002Z","published":"2026-10-22T19:13:52.184Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-754"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115385.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115385.json"},{"type":"ADVISORY","url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-mr2v-56j5-cmfc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115385"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.4-and-49.0.0-before-49.0.2-host-panic-via-wasip3-timestamps"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/bytecodealliance/wasmtime","events":[{"introduced":"423be7a4e4d30bb377c836d317521d1eb874e157"},{"fixed":"d02ffd202850007ea953224f589a569e8830eb6c"},{"introduced":"17830bd3c0331d920a8aa38846eebc4d46d98c23"},{"fixed":"3c8a3e79aa3188a1a12b3aebbaa097abccceac92"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"46.0.0"},{"fixed":"48.0.4"}]},{"strategy":"StandardRange","range":[{"introduced":"49.0.0"},{"fixed":"49.0.2"}],"source":"AFFECTED_FIELD"}]}}],"versions":["v49.0.1","v49.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-115385.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}