{"api_version":"1","generated_at":"2026-04-21T10:50:35+00:00","cve":"CVE-2026-29647","urls":{"html":"https://cve.report/CVE-2026-29647","api":"https://cve.report/api/cve/CVE-2026-29647.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-29647","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-29647"},"summary":{"title":"CVE-2026-29647","description":"In OpenXiangShan NEMU, insufficient Smstateen permission enforcement allows lower-privileged code to access IMSIC state via stopei/vstopei CSRs even when mstateen0.IMSIC is cleared, potentially enabling cross-context information leakage or disruption of interrupt handling.","state":"PUBLISHED","assigner":"mitre","published_at":"2026-04-20 21:16:19","updated_at":"2026-04-20 21:16:19"},"problem_types":["n/a"],"metrics":[],"references":[{"url":"https://docs.riscv.org/reference/isa/priv/smstateen.html#state-enable-0-registers","name":"https://docs.riscv.org/reference/isa/priv/smstateen.html#state-enable-0-registers","refsource":"cve@mitre.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/OpenXiangShan/NEMU/issues/691","name":"https://github.com/OpenXiangShan/NEMU/issues/691","refsource":"cve@mitre.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/OpenXiangShan/XiangShan/pull/3978","name":"https://github.com/OpenXiangShan/XiangShan/pull/3978","refsource":"cve@mitre.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-29647","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29647","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"descriptions":[{"lang":"en","value":"In OpenXiangShan NEMU, insufficient Smstateen permission enforcement allows lower-privileged code to access IMSIC state via stopei/vstopei CSRs even when mstateen0.IMSIC is cleared, potentially enabling cross-context information leakage or disruption of interrupt handling."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2026-04-20T20:49:54.460Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"url":"https://github.com/OpenXiangShan/NEMU/issues/691"},{"url":"https://github.com/OpenXiangShan/XiangShan/pull/3978"},{"url":"https://docs.riscv.org/reference/isa/priv/smstateen.html#state-enable-0-registers"}]}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2026-29647","datePublished":"2026-04-20T00:00:00.000Z","dateReserved":"2026-03-04T00:00:00.000Z","dateUpdated":"2026-04-20T20:49:54.460Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-20 21:16:19","lastModifiedDate":"2026-04-20 21:16:19","problem_types":["n/a"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"29647","Ordinal":"1","Title":"CVE-2026-29647","CVE":"CVE-2026-29647","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"29647","Ordinal":"1","NoteData":"In OpenXiangShan NEMU, insufficient Smstateen permission enforcement allows lower-privileged code to access IMSIC state via stopei/vstopei CSRs even when mstateen0.IMSIC is cleared, potentially enabling cross-context information leakage or disruption of interrupt handling.","Type":"Description","Title":"CVE-2026-29647"}]}}}