{"affected":[{"defaultStatus":"unaffected","ecosystem":"pypi","packageName":"langflow","product":"langflow","source":"CNA: VulnCheck","vendor":"langflow-ai","versions":[{"lessThan":"1.3.0","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2025-3248","cwes":["CWE-306"],"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.","epss":{"date":"2026-11-08","percentile":0.99987,"score":0.99993},"exploits":[{"kind":"exploit","source":"CNA: VulnCheck","url":"https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/"}],"kev":{"addedAt":1746403200000,"dueDateAt":1748217600000,"knownRansomwareUse":true,"product":"Langflow","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.","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.","vendor":"Langflow","vulnerabilityName":"Langflow Missing Authentication Vulnerability"},"metrics":[{"score":9.8,"severity":"critical","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794146413850,"publishedAt":1744035758980,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://github.com/langflow-ai/langflow/pull/6911"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/langflow-ai/langflow/releases/tag/1.3.0"},{"source":"CNA: VulnCheck","tags":["exploit"],"url":"https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/langflow-unauthenticated-rce"},{"source":"ADP: CISA-ADP","tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/langflow-ai/langflow/pull/6911"}],"revision":"15954936267d5b61525c51ef75819ab6b3f157ab76ff921775dcfa234e768102","sources":[{"modifiedAt":1794146413850,"name":"CNA: VulnCheck","retrievedAt":1794146961217,"url":"https://www.cve.org/CVERecord?id=CVE-2025-3248"},{"modifiedAt":null,"name":"CISA KEV","retrievedAt":1793593336098,"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794150555711,"url":"https://api.first.org/data/v1/epss?cve=CVE-2025-3248"}],"ssvc":{"assessedAt":1755287413871,"automatable":"yes","exploitation":"active","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code","updatedAt":1794150555711}