{"id":"CVE-2026-17621","title":"IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote attacker to traverse directories on the system","summary":"IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing \"dot dot \" sequences ( /.. /) to view arbitrary files on the sys…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-22"],"vendor":"langflow","product":"langflow","affected":["langflow >= 1.0.0, < 1.10.3"],"patched":["langflow 1.10.3"],"published":"2026-09-04","updated":"2026-09-10","sourceUpdated":"2026-09-10T21:17:22.333","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-17621","references":[{"url":"https://www.ibm.com/support/pages/node/7286293","label":"psirt@us.ibm.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-10T20:37:50.537359Z"},"epss":0.00293,"epssPercentile":0.22074,"ingestedAt":"2026-09-08T15:33:26.963Z","slug":"CVE-2026-17621","body":"## Overview\n\nIBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing \"dot dot \" sequences ( /.. /) to view arbitrary files on the system.\n\n## Affected\n\n- `langflow >= 1.0.0, < 1.10.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `langflow 1.10.3`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}