{"api_version":"1","generated_at":"2026-05-28T11:15:49+00:00","cve":"CVE-2026-44449","urls":{"html":"https://cve.report/CVE-2026-44449","api":"https://cve.report/api/cve/CVE-2026-44449.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-44449","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-44449"},"summary":{"title":"Lumiverse: SMB `exists()` basename injection via smbclient `!cmd` escape","description":"Lumiverse is a full-featured AI chat application. Prior to 0.9.7, when the primary toSmbPath(fullPath) call throws, the method falls back to a dirname/basename split and only validates the directory prefix. The basename is concatenated directly into the smbclient -c script without validation. smbclient interprets ; as a subcommand separator and !cmd as a local-shell escape that runs cmd on the host. A path whose directory component is clean but whose basename contains \"; !<cmd>; echo \" achieves arbitrary command execution on the Lumiverse server. This vulnerability is fixed in 0.9.7.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-05-26 21:16:38","updated_at":"2026-05-27 14:57:07"},"problem_types":["CWE-88","CWE-88 CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://github.com/prolix-oc/Lumiverse/security/advisories/GHSA-4v38-9hqq-7j53","name":"https://github.com/prolix-oc/Lumiverse/security/advisories/GHSA-4v38-9hqq-7j53","refsource":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-44449","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44449","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"prolix-oc","product":"Lumiverse","version":"affected < 0.9.7","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"44449","cve":"CVE-2026-44449","epss":"0.000780000","percentile":"0.231580000","score_date":"2026-05-27","updated_at":"2026-05-28 00:02:12"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-44449","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-05-27T13:22:29.674327Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-05-27T13:22:34.992Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["exploit"],"url":"https://github.com/prolix-oc/Lumiverse/security/advisories/GHSA-4v38-9hqq-7j53"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"Lumiverse","vendor":"prolix-oc","versions":[{"status":"affected","version":"< 0.9.7"}]}],"descriptions":[{"lang":"en","value":"Lumiverse is a full-featured AI chat application. Prior to 0.9.7, when the primary toSmbPath(fullPath) call throws, the method falls back to a dirname/basename split and only validates the directory prefix. The basename is concatenated directly into the smbclient -c script without validation. smbclient interprets ; as a subcommand separator and !cmd as a local-shell escape that runs cmd on the host. A path whose directory component is clean but whose basename contains \"; !<cmd>; echo \" achieves arbitrary command execution on the Lumiverse server. This vulnerability is fixed in 0.9.7."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-88","description":"CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-26T20:00:12.090Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/prolix-oc/Lumiverse/security/advisories/GHSA-4v38-9hqq-7j53","tags":["x_refsource_CONFIRM"],"url":"https://github.com/prolix-oc/Lumiverse/security/advisories/GHSA-4v38-9hqq-7j53"}],"source":{"advisory":"GHSA-4v38-9hqq-7j53","discovery":"UNKNOWN"},"title":"Lumiverse: SMB `exists()` basename injection via smbclient `!cmd` escape"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-44449","datePublished":"2026-05-26T20:00:12.090Z","dateReserved":"2026-05-06T15:49:25.192Z","dateUpdated":"2026-05-27T13:22:34.992Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-26 21:16:38","lastModifiedDate":"2026-05-27 14:57:07","problem_types":["CWE-88","CWE-88 CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.3,"impactScore":6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"44449","Ordinal":"1","Title":"Lumiverse: SMB `exists()` basename injection via smbclient `!cmd","CVE":"CVE-2026-44449","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"44449","Ordinal":"1","NoteData":"Lumiverse is a full-featured AI chat application. Prior to 0.9.7, when the primary toSmbPath(fullPath) call throws, the method falls back to a dirname/basename split and only validates the directory prefix. The basename is concatenated directly into the smbclient -c script without validation. smbclient interprets ; as a subcommand separator and !cmd as a local-shell escape that runs cmd on the host. A path whose directory component is clean but whose basename contains \"; !<cmd>; echo \" achieves arbitrary command execution on the Lumiverse server. This vulnerability is fixed in 0.9.7.","Type":"Description","Title":"Lumiverse: SMB `exists()` basename injection via smbclient `!cmd"}]}}}