{"api_version":"1","generated_at":"2026-07-23T11:00:48+00:00","cve":"CVE-2025-3248","urls":{"html":"https://cve.report/CVE-2025-3248","api":"https://cve.report/api/cve/CVE-2025-3248.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-3248","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-3248"},"summary":{"title":"Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code","description":"Langflow versions prior to 1.3.0 are susceptible to code injection in \nthe /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary\ncode.","state":"PUBLISHED","assigner":"VulnCheck","published_at":"2025-04-07 15:15:44","updated_at":"2026-07-14 23:17:27"},"problem_types":["CWE-306","CWE-94","CWE-306 CWE-306 Missing Authentication for Critical Function"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"disclosure@vulncheck.com","type":"Secondary","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://www.vulncheck.com/advisories/langflow-unauthenticated-rce","name":"https://www.vulncheck.com/advisories/langflow-unauthenticated-rce","refsource":"disclosure@vulncheck.com","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248","name":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248","refsource":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["US Government Resource"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/","name":"https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/","refsource":"disclosure@vulncheck.com","tags":["Exploit","Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/langflow-ai/langflow/releases/tag/1.3.0","name":"https://github.com/langflow-ai/langflow/releases/tag/1.3.0","refsource":"disclosure@vulncheck.com","tags":["Release Notes"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/langflow-ai/langflow/pull/6911","name":"https://github.com/langflow-ai/langflow/pull/6911","refsource":"disclosure@vulncheck.com","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-3248","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-3248","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"langflow-ai","product":"langflow","version":"affected 1.3.0 semver","platforms":[]}],"timeline":[{"source":"ADP","time":"2025-05-05T00:00:00.000Z","lang":"en","value":"CVE-2025-3248 added to CISA KEV"}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Naveen Sunkavally of Horizon3.ai","lang":"en"}],"nvd_cpes":[{"cve_year":"2025","cve_id":"3248","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"langflow","cpe5":"langflow","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":{"cve_year":"2025","cve_id":"3248","cve":"CVE-2025-3248","vendorProject":"Langflow","product":"Langflow","vulnerabilityName":"Langflow Missing Authentication Vulnerability","dateAdded":"2025-05-05","shortDescription":"Langflow contains a missing authentication vulnerability in the /api/v1/validate/code endpoint that allows a remote, unauthenticated attacker to execute arbitrary code via crafted HTTP requests.","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","dueDate":"2025-05-26","knownRansomwareCampaignUse":"Known","notes":"This vulnerability affects a common open-source project, third-party library, or a protocol used by different products. For more information, please see: https://github.com/advisories/GHSA-c995-4fw3-j39m ; https://nvd.nist.gov/vuln/detail/CVE-2025-3248","cwes":"CWE-306","catalogVersion":"2026.07.22","updated_at":"2026-07-22 20:07:15"},"epss":{"cve_year":"2025","cve_id":"3248","cve":"CVE-2025-3248","epss":"0.999900000","percentile":"0.999850000","score_date":"2026-07-22","updated_at":"2026-07-23 00:09:32"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2025-3248","options":[{"Exploitation":"active"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2025-08-15T19:50:13.871465Z","version":"2.0.3"},"type":"ssvc"}},{"other":{"content":{"dateAdded":"2025-05-05","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248"},"type":"kev"}}],"providerMetadata":{"dateUpdated":"2025-10-21T22:55:21.731Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248"}],"timeline":[{"lang":"en","time":"2025-05-05T00:00:00.000Z","value":"CVE-2025-3248 added to CISA KEV"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","packageURL":"pkg:github/langflow-ai/langflow","product":"langflow","repo":"https://github.com/langflow-ai/langflow","vendor":"langflow-ai","versions":[{"lessThan":"1.3.0","status":"affected","version":"0","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*","versionEndExcluding":"1.3.0","versionStartIncluding":"0","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"credits":[{"lang":"en","type":"finder","value":"Naveen Sunkavally of Horizon3.ai"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Langflow versions prior to 1.3.0 are susceptible to code injection in \nthe /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary\ncode."}],"value":"Langflow versions prior to 1.3.0 are susceptible to code injection in \nthe /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary\ncode."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-306","description":"CWE-306 Missing Authentication for Critical Function","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-07-14T22:25:39.291Z","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck"},"references":[{"tags":["issue-tracking"],"url":"https://github.com/langflow-ai/langflow/pull/6911"},{"tags":["release-notes"],"url":"https://github.com/langflow-ai/langflow/releases/tag/1.3.0"},{"tags":["exploit"],"url":"https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/"},{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/langflow-unauthenticated-rce"}],"source":{"discovery":"EXTERNAL"},"title":"Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code","x_generator":{"engine":"vulncheck"}}},"cveMetadata":{"assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","assignerShortName":"VulnCheck","cveId":"CVE-2025-3248","datePublished":"2025-04-07T14:22:38.980Z","dateReserved":"2025-04-04T00:58:44.770Z","dateUpdated":"2026-07-14T22:25:39.291Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-04-07 15:15:44","lastModifiedDate":"2026-07-14 23:17:27","problem_types":["CWE-306","CWE-94","CWE-306 CWE-306 Missing Authentication for Critical Function"],"metrics":{"cvssMetricV31":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-08-15T19:50:13.871465Z","id":"CVE-2025-3248","options":[{"exploitation":"active"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*","versionEndExcluding":"1.3.0","matchCriteriaId":"464AFA20-81A9-41A6-B9F1-CD38B64C40C7"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"3248","Ordinal":"1","Title":"Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code","CVE":"CVE-2025-3248","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"3248","Ordinal":"1","NoteData":"Langflow versions prior to 1.3.0 are susceptible to code injection in \nthe /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary\ncode.","Type":"Description","Title":"Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code"}]}}}