{"id":"CVE-2026-19298","aliases":["EUVD-2026-71598","GHSA-qjf8-5fwj-jhh8"],"status":"published","title":"Langflow is vulnerable to remote code execution due to authorization policy bypass in the authenticated flow-build endpoint","description":"IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to execute arbitrary code due to an authorization bypass in the flow build process.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00882,"percentile":0.59597,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-94"],"published":"2026-09-04T16:05:58Z","modified":"2026-09-10T16:17:09Z","products":[{"vendor":"ibm","product":"langflow oss"},{"vendor":"langflow","product":"langflow"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7285640","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-19298"},{"url":"https://github.com/advisories/GHSA-qjf8-5fwj-jhh8"}],"sources":{"cve":[{"id":"CVE-2026-19298","title":"Langflow is vulnerable to remote code execution due to authorization policy bypass in the authenticated flow-build endpoint","description":"IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to execute arbitrary code due to an authorization bypass in the flow build process.","status":"published","published":"2026-09-04T16:05:58.284Z","modified":"2026-09-10T15:07:11.405Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T13:47:17.512524Z"}],"euvd":[{"id":"EUVD-2026-71598","description":"IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to execute arbitrary code due to an authorization bypass in the flow build process.","status":"published","published":"2026-09-04T16:05:58Z","modified":"2026-09-10T15:07:11Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T17:28:24.501469Z"}],"ghsa":[{"id":"GHSA-qjf8-5fwj-jhh8","title":"IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to execute...","description":"IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to execute arbitrary code due to an authorization bypass in the flow build process.","status":"published","published":"2026-09-04T18:31:20Z","modified":"2026-09-04T18:31:26Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T15:11:23.167848Z"}],"nvd":[{"id":"CVE-2026-19298","description":"IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to execute arbitrary code due to an authorization bypass in the flow build process.","status":"published","published":"2026-09-04T16:17:21.9Z","modified":"2026-09-10T16:17:09.163Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:12:43.737972Z"}]}}