{"api_version":"1","generated_at":"2026-05-01T12:28:52+00:00","cve":"CVE-2026-4503","urls":{"html":"https://cve.report/CVE-2026-4503","api":"https://cve.report/api/cve/CVE-2026-4503.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-4503","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-4503"},"summary":{"title":"Unauthenticated Insecure Direct Object Reference (IDOR) Vulnerability in Langflow Desktop Image Download Endpoint","description":"IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow could allow an unauthenticated user to view other users' images due to an indirect object reference through a user-controlled key.","state":"PUBLISHED","assigner":"ibm","published_at":"2026-04-30 21:16:33","updated_at":"2026-04-30 21:16:33"},"problem_types":["CWE-639","CWE-639 CWE-639 Authorization Bypass Through User-Controlled Key"],"metrics":[{"version":"3.1","source":"psirt@us.ibm.com","type":"Primary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"url":"https://www.ibm.com/support/pages/node/7271099","name":"https://www.ibm.com/support/pages/node/7271099","refsource":"psirt@us.ibm.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-4503","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4503","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"IBM","product":"Langflow Desktop","version":"affected 1.0.0 1.8.4 semver","platforms":[]}],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"IBM recommends addressing the vulnerability now by upgrading to IBM Langflow Desktop 1.9.0 or newer  https://www.langflow.org/blog/langflow-1-9-desktop \nIf you are already using Langflow Desktop, upgrade in the application to version 1.9.0\nTo install Langflow Desktop for the first time, visit   Langflow Desktop https://langflow.org/desktop . Download https://langflow.org/desktop","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"cpes":["cpe:2.3:a:ibm:langflow_desktop:1.0.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:*"],"product":"Langflow Desktop","vendor":"IBM","versions":[{"lessThanOrEqual":"1.8.4","status":"affected","version":"1.0.0","versionType":"semver"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow could allow an unauthenticated user to view other users' images due to an indirect object reference through a user-controlled key.</p>"}],"value":"IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow could allow an unauthenticated user to view other users' images due to an indirect object reference through a user-controlled key."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","description":"CWE-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-04-30T20:48:17.662Z","orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","shortName":"ibm"},"references":[{"tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7271099"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>IBM recommends addressing the vulnerability now by upgrading to IBM Langflow Desktop 1.9.0 or newer <a href=\"https://www.langflow.org/blog/langflow-1-9-desktop\" rel=\"nofollow\">https://www.langflow.org/blog/langflow-1-9-desktop</a><br>If you are already using Langflow Desktop, upgrade in the application to version 1.9.0<br>To install Langflow Desktop for the first time, visit <a href=\"https://langflow.org/desktop\" rel=\"nofollow\">&nbsp;Langflow Desktop</a>.<a href=\"https://langflow.org/desktop\" rel=\"nofollow\">Download</a></p>"}],"value":"IBM recommends addressing the vulnerability now by upgrading to IBM Langflow Desktop 1.9.0 or newer  https://www.langflow.org/blog/langflow-1-9-desktop \nIf you are already using Langflow Desktop, upgrade in the application to version 1.9.0\nTo install Langflow Desktop for the first time, visit   Langflow Desktop https://langflow.org/desktop . Download https://langflow.org/desktop"}],"title":"Unauthenticated Insecure Direct Object Reference (IDOR) Vulnerability in Langflow Desktop Image Download Endpoint","x_generator":{"engine":"ibm-cvegen"}}},"cveMetadata":{"assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","assignerShortName":"ibm","cveId":"CVE-2026-4503","datePublished":"2026-04-30T20:48:17.662Z","dateReserved":"2026-03-20T14:01:11.389Z","dateUpdated":"2026-04-30T20:48:17.662Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-30 21:16:33","lastModifiedDate":"2026-04-30 21:16:33","problem_types":["CWE-639","CWE-639 CWE-639 Authorization Bypass Through User-Controlled Key"],"metrics":{"cvssMetricV31":[{"source":"psirt@us.ibm.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"4503","Ordinal":"1","Title":"Unauthenticated Insecure Direct Object Reference (IDOR) Vulnerab","CVE":"CVE-2026-4503","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"4503","Ordinal":"1","NoteData":"IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow could allow an unauthenticated user to view other users' images due to an indirect object reference through a user-controlled key.","Type":"Description","Title":"Unauthenticated Insecure Direct Object Reference (IDOR) Vulnerab"}]}}}