CVE-2026-7658: IBM Langflow OSS path traversal via unvalidated username field

Summary

CVE-2026-7658 affects IBM Langflow OSS versions 1.0.0 through 1.10.3. The username field is not properly validated, so attackers can inject path traversal sequences and bypass containment checks. Reported impacts include arbitrary directory deletion, cross-tenant data destruction, and deletion of the JWT signing key, which invalidates sessions.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Related items

• HighCVE-2026-123818: LMDeploy is a toolkit for compressing, deploying, and serving large language models. From 0.12.3 until 0.15.0…Similar attack · NVD/CVE Database
• HighGHSA-vvr2-h2jp-838m: Code Graph RAG: MCP paginated read_file path traversal / arbitrary file readSimilar attack · GitHub Advisory Database
• MediumAttackers Crash Claude's 'Office Party' Flaw to Run Malicious Code on LinuxSimilar attack · Dark Reading
• MediumCVE-2026-124588: huggingface finetrainers code injection via Library argumentSimilar attack · NVD/CVE Database
• MediumTaiwan-Based Hacker Used BOSSAI AI Agents to Steal Taipei Emergency Dispatch RecordsSimilar attack · The Hacker News