{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4502", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-03-20T13:47:59.369Z", "datePublished": "2026-04-30T20:57:08.130Z", "dateUpdated": "2026-06-12T20:28:41.538Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-06-12T20:28:41.538Z"}, "title": "Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}], "affected": [{"vendor": "IBM", "product": "Langflow Desktop", "versions": [{"status": "affected", "version": "1.2.0", "lessThanOrEqual": "1.8.4", "versionType": "semver"}], "defaultStatus": "unaffected", "cpes": ["cpe:2.3:a:ibm:langflow_desktop:1.2.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send\u00a0a specially crafted URL request containing \"dot dot\" sequences (/../) to write arbitrary files on the system.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send&nbsp;a specially crafted URL request containing \"dot dot\" sequences (/../) to write arbitrary files on the system.</p>"}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7271097", "tags": ["vendor-advisory", "patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"}}], "solutions": [{"lang": "en", "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 \u00a0Langflow Desktop https://langflow.org/desktop . Download https://langflow.org/desktop", "supportingMedia": [{"type": "text/html", "base64": false, "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>"}]}], "credits": [{"lang": "en", "value": "The vulnerability was reported to IBM by Akshat Sinha, Senior SRE Rubrik (https://www.linkedin.com/in/akshat-sinha-568765167).", "type": "reporter"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "ibm-cvegen"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-01T14:57:03.183036Z", "id": "CVE-2026-4502", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-01T14:58:10.215Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-4502", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-01T14:57:03.183036Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-01T14:57:31.370Z"}}], "cna": {"title": "Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "reporter", "value": "The vulnerability was reported to IBM by Akshat Sinha, Senior SRE Rubrik (https://www.linkedin.com/in/akshat-sinha-568765167)."}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"cpes": ["cpe:2.3:a:ibm:langflow_desktop:1.2.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:*"], "vendor": "IBM", "product": "Langflow Desktop", "versions": [{"status": "affected", "version": "1.2.0", "versionType": "semver", "lessThanOrEqual": "1.8.4"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "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 \u00a0Langflow Desktop https://langflow.org/desktop . Download https://langflow.org/desktop", "supportingMedia": [{"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>", "base64": false}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7271097", "tags": ["vendor-advisory", "patch"]}], "x_generator": {"engine": "ibm-cvegen"}, "descriptions": [{"lang": "en", "value": "IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send\u00a0a specially crafted URL request containing \"dot dot\" sequences (/../) to write arbitrary files on the system.", "supportingMedia": [{"type": "text/html", "value": "<p>IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send&nbsp;a specially crafted URL request containing \"dot dot\" sequences (/../) to write arbitrary files on the system.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}], "providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-06-12T20:28:41.538Z"}}}, "cveMetadata": {"cveId": "CVE-2026-4502", "state": "PUBLISHED", "dateUpdated": "2026-06-12T20:28:41.538Z", "dateReserved": "2026-03-20T13:47:59.369Z", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "datePublished": "2026-04-30T20:57:08.130Z", "assignerShortName": "ibm"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:ibm:langflow_desktop:1.2.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "product": "Langflow Desktop", "vendor": "IBM", "versions": [{"lessThanOrEqual": "1.8.4", "status": "affected", "version": "1.2.0", "versionType": "semver"}]}], "source": "psirt@us.ibm.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:langflow:langflow_desktop:*:*:*:*:*:*:*:*", "matchCriteriaId": "4B9C49D8-B198-43A9-ACF6-ADEB4BA58A96", "versionEndIncluding": "1.8.4", "versionStartIncluding": "1.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send\u00a0a specially crafted URL request containing \"dot dot\" sequences (/../) to write arbitrary files on the system."}], "id": "CVE-2026-4502", "lastModified": "2026-06-17T10:56:42.850", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "psirt@us.ibm.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-4502", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-01T14:57:03.183036Z", "version": "2.0.3"}}]}, "published": "2026-04-30T21:16:33.533", "references": [{"source": "psirt@us.ibm.com", "tags": ["Vendor Advisory"], "url": "https://www.ibm.com/support/pages/node/7271097"}], "sourceIdentifier": "psirt@us.ibm.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "psirt@us.ibm.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.2.0,1.8.4]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Langflow Desktop", "source": "cna", "vendor": "IBM"}, "product": "langflow_desktop", "vendor": "ibm"}], "created": "2026-04-30T22:30:02.674577+00:00", "updated": "2026-05-02T00:30:16.072223+00:00", "vendors": ["ibm", "ibm$PRODUCT$langflow_desktop"]}