{"id":"CVE-2026-3346","aliases":["EUVD-2026-26425","GHSA-m357-46wc-mgw8"],"status":"published","title":"Stored Cross-Site Scripting (XSS) in Langflow Markdown Rendering via rehypeRaw","description":"IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00157,"percentile":0.04845,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-89"],"published":"2026-04-30T21:06:10Z","modified":"2026-10-26T21:10:00Z","products":[{"vendor":"ibm","product":"langflow desktop"},{"vendor":"langflow","product":"langflow_desktop"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7271095","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3346"},{"url":"https://github.com/advisories/GHSA-m357-46wc-mgw8"}],"sources":{"cve":[{"id":"CVE-2026-3346","title":"Stored Cross-Site Scripting (XSS) in Langflow Markdown Rendering via rehypeRaw","description":"IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.","status":"published","published":"2026-04-30T21:06:10.276Z","modified":"2026-05-01T16:38:14.702Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-89"],"updated_at":"2026-11-02T13:48:58.05327Z"}],"euvd":[{"id":"EUVD-2026-26425","description":"IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.","status":"published","published":"2026-04-30T21:06:10Z","modified":"2026-05-01T16:38:14Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:05:18.723006Z"}],"ghsa":[{"id":"GHSA-m357-46wc-mgw8","title":"IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting....","description":"IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.","status":"published","published":"2026-04-30T21:30:38Z","modified":"2026-04-30T21:30:44Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-89"],"updated_at":"2026-11-02T15:07:52.236911Z"}],"nvd":[{"id":"CVE-2026-3346","description":"IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.","status":"published","published":"2026-04-30T21:16:32.61Z","modified":"2026-10-26T21:10:00.17Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-89"],"updated_at":"2026-11-02T14:12:16.626888Z"}]}}