CVE-2026-42048

critical
Published 2026-05-12 · Modified 2026-05-13
CVSS v3
9.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
CVSS v2
VIR risk
9.6

Description

Langflow Knowledge Bases API is Vulnerable to Path Traversal

Predictions

Exploit likelihood
100%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

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

Package impact

EcosystemPackageVulnerableFixed
python PyPIlangflow<1.9.01.9.0
PIPlangflow<= 1.8.41.9.0

Application impact

VendorProductVersionsFixed
langflowlangflow{"endExcluding":"1.9.0"}1.9.0

References

CWEs

CWE-22

Verify integrity in audit chain (admin only). AS-IS.