Medium 5.4Published Aug 5, 2026

CVE-2026-7869Langflow OSS is affected by arbitrary code execution in custom component validation and trusted code enforcement

Updated under an hour ago (2026-10-19 07:00 UTC)

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It affects IBM Langflow OSS and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for IBM Langflow OSS

Exploited in the last 30 days

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.

CVSS: 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: ibm
NVD analysis: Analyzed
Record last updated: Aug 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

IBM Langflow OSS ibm:langflow_oss	from 1.0.0 through 1.10.3	CNA record
langflow langflow langflow:langflow	from 1.0.0 before 1.11.0	NVD

References

https://www.ibm.com/support/pages/node/7282647vendor-advisory, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.