{"schema":"threatline.record/2","record":{"id":"CVE-2025-3248","aliases":[],"summary":"Langflow Missing Authentication Vulnerability","details":"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.","categories":["Applications & CMS"],"product":"Langflow","vendor":"Langflow","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-3248","source_modified_at":"2026-10-08T15:21:16.208Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"langflow","vendor":"langflow-ai","versions":[{"lessThan":"1.3.0","status":"affected","version":"0","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-3248","source_modified_at":"2026-10-08T15:21:16.208Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"langflow","ecosystem":null},"version":"1.3.0","basis":"first unaffected version stated in the CVE record"}],"cvss":9.8,"severity":"Critical","kev":{"listed":true,"date_added":"2025-05-05","due_date":"2025-05-26","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","ransomware_campaign_use":"Known"},"epss":{"probability":0.99993,"percentile":0.99987,"score_date":"2026-10-23"},"published_at":"2025-04-07T14:22:38.980Z","modified_at":"2026-10-08T15:21:16.208Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2025-3248","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-08T15:21:16.208Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/langflow_unauth_rce_cve_2025_3248.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-04-09"},{"source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/52364","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-07-16"},{"source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/52262","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-04-18"},{"source":"Nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-3248.yaml","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":null},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2025-3248","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","Exploit-DB","Nuclei","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-3248","source":"CISA KEV"},{"source":"CVE List","url":"https://github.com/langflow-ai/langflow/pull/6911","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/langflow-ai/langflow/releases/tag/1.3.0","tags":["release-notes"]},{"source":"CVE List","url":"https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/","tags":["exploit"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/langflow-unauthenticated-rce","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2025-08-15T19:50:13.871465Z"},"exploits":[{"source":"Metasploit","kind":"Exploit module","name":"Langflow AI RCE","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/langflow_unauth_rce_cve_2025_3248.rb","date":"2025-04-09","added":"2026-06-02","check":true},{"source":"Exploit-DB","kind":"Webapps exploit","name":"Langflow 1.2.x - 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