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CVE-2026-42048 - Vulnerability Analysis

CriticalCVSS: 9.6

Last Updated: May 12, 2026

Langflow - Path Traversal

Published: May 12, 2026Updated: May 12, 2026Remote Exploitable

Overview

Langflow < 1.9.0 contains a path traversal caused by unsanitized user-supplied knowledge base names in the Knowledge Bases API, letting authenticated attackers delete arbitrary directories, exploit requires authentication.

Severity & Score

Severity: Critical

CVSS Score: 9.6

Impact

Authenticated attackers can delete arbitrary directories, causing data loss and service disruption.

Mitigation

Upgrade to version 1.9.0 or later.

References

https://github.com/langflow-ai/langflow/security/advisories/GHSA-9whx-c884-c68q

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-42048
Severity: Critical
CVSS Score: 9.6
Type: path_traversal
Status: new

CWE

CWE-22

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H