CVE-2026-7658: Langflow OSS is affected by arbitrary code execution in custom component validation and trusted code enforcement
Published Aug 5, 2026
·Updated
IBM Langflow OSS 1.0.0 through 1.10.3 does not properly validate the username field, allowing attackers to inject path traversal sequences and bypass containment checks. This enables multiple severe impacts, including arbitrary directory deletion, cross-tenant data destruction, and JWT signing key deletion leading to session invalidation.
Other sources
Langflow OSS does not properly validate the
— IBM
Affected Software
2 affected components
IBM Langflow OSS>=1.0.0<=1.10.3
IBM Langflow OSS<=1.0.0-1.10.3
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Langflow OSSto a version that resolves this vulnerability.Fixed in 1.11.0
Event History
Aug 5, 2026
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
CVE Published
via MITRE·06:20 PM
Data Sourced
via MITRE·06:20 PM
RemedyDescriptionSeverityWeakness