CVE-2026-7658 IBM CVE debrief

Who should care

Organizations using IBM Langflow OSS versions 1.0.0 through 1.10.3 should prioritize patching this vulnerability. Security teams and administrators responsible for these systems should take immediate action to mitigate potential risks. IT operations teams managing affected systems should also be aware of the vulnerability and plan for updates or mitigations. Additionally, vulnerability management teams should review and assess exposure of IBM Langflow OSS installations within their environments.

Technical summary

IBM Langflow OSS 1.0.0 through 1.10.3 contains a vulnerability allowing attackers to inject path traversal sequences. This could enable multiple severe impacts, including arbitrary directory deletion, cross-tenant data destruction, and JWT signing key deletion leading to session invalidation. The vulnerability has been assigned a CVSS score of 6.5 and a severity of MEDIUM. Affected systems may require immediate attention to prevent potential exploitation.

Defensive priority

Medium-severity vulnerability in IBM Langflow OSS, allowing path traversal with impacts including arbitrary directory deletion and JWT signing key deletion.

Recommended defensive actions

• Review and apply IBM Langflow OSS updates to version 1.10.4 or later
• Implement input validation and sanitization for username fields
• Monitor systems for suspicious activity related to directory traversal
• Consider compensating controls such as Web Application Firewalls
• Inventory and assess exposure of IBM Langflow OSS installations

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in IBM Langflow OSS 1.0.0 through 1.10.3. The vulnerability allows attackers to inject path traversal sequences, potentially leading to severe impacts such as arbitrary directory deletion, cross-tenant data destruction, and JWT signing key deletion. However, detailed information about affected configurations and vendor remediation is limited. Defenders should verify system configurations, review logs for suspicious activity, and prioritize patching based on asset criticality and potential exposure.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.