CVE-2026-17621CWE-22path-traversal

CVE-2026-17621

Medium · published September 4, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
20.8
In the wild
Unconfirmed
What it is

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 system.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00293 · 20.8th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-09-04T21:16Z
Affected products (1)
ProductVersionsFixed in
langflow/langflow≥ 1.0.0, < 1.10.31.10.3
References (1)
https://www.ibm.com/support/pages/node/7286293 · [email protected]
EPSS history
Timeline
  • 06 SEP 03:30Z
    EPSS moved — → 0%
    epss
  • 04 SEP 16:29Z
    Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in file and knowledge base components
    cvelistv5