CVE-2026-104314

Langflow read or share access can reveal a flow owner’s credentials

IBM / Langflow · Langflow OSS

First documented disclosure · Review checkpoint

Summary

Cleartext disclosure of the flow owner’s stored third-party credentials.

Severity and exploitation evidence

Medium · 6.5/10 · CVSS 3.1. Severity source.

Exploitation not established: The reviewed primary records do not establish malicious exploitation or a confirmed victim.

Exploitation evidence source

Technical severity is not a measure of observed attacks or of risk to your deployment. Attempts, demonstrations, and successful compromise retain the qualifications in the source.

How the weakness works

The API returns stored third-party credentials to a caller whose grant only permits reading or sharing a flow.

Conditions required

Authenticated access with a read or share grant on the target flow.

Potential impact

Cleartext disclosure of the flow owner’s stored third-party credentials.

Affected versions and configurations

IBM lists Langflow OSS 1.0.0 through 1.12.3.

Fix and mitigation status

1.12.4 per IBM; this is an issue-specific fix, not assurance that the old release addresses later findings.

Practical next steps

Upgrade to a current supported release containing the fix; back up the deployment and validate workflow behavior.

Operating lesson

Separate permission to view a workflow from permission to use or reveal its secrets.

Evidence and limits

IBM bulletin 7293015 was initially published 2026-10-19; the CNA record followed on 2026-10-29. Earlier upstream patches are not assigned to this CVE by inference. Exact technical details absent from the public record remain unknown; a CVSS score is not an observed incident.

Sources