CVE-2026-7869CWE-22path-traversal

CVE-2026-7869

Medium · published August 5, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
23.6
In the wild
Unconfirmed
What it is

IBM Langflow OSS 1.0.0 through 1.10.3 is vulnerable to Path Traversal in the Knowledge Bases API (`POST /api/v1/knowledge_bases`). This occurs because user-supplied knowledge base names are used directly to create file paths without proper sanitization or containment checks. An authenticated attacker can exploit this flaw to create directories and write files anywhere on the server's filesystem.

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
0.00319 · 23.6th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-08-05T23:17Z
Affected products (1)
ProductVersionsFixed in
langflow/langflow≥ 1.0.0, < 1.11.01.11.0
References (1)
https://www.ibm.com/support/pages/node/7282647 · [email protected]
EPSS history
Timeline
  • 05 AUG 18:13Z
    Langflow OSS is affected by arbitrary code execution in custom component validation and trusted code enforcement
    cvelistv5