CVE-2026-77817

Langflow flow and project exports retain secrets

IBM / Langflow · Langflow OSS

First documented disclosure · Review checkpoint

Summary

Sensitive values remain in exported copies.

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

Export sanitization fails to remove sensitive values from flow or project output.

Conditions required

An authenticated user can access the affected export path or exported files.

Potential impact

Sensitive values remain in exported copies.

Affected versions and configurations

IBM lists Langflow OSS 1.0.0 through 1.12.4. This broad range conflicts with IBM’s issue-specific earlier-fix statement.

Fix and mitigation status

IBM says this issue was fixed in 1.11.5; 1.12.5 includes it. Its broad affected-version table still extends through 1.12.4.

Practical next steps

Upgrade to a current supported release containing the fix; back up the deployment and validate workflow behavior. Where MCP stdio is used, IBM additionally requires interpreter hardening and administrator-only controls; configuration changes do not replace upgrading. Revoke or rotate secrets exposed in prior exports; upgrading does not sanitize existing copies.

Operating lesson

Review exported artifacts as secret-bearing data and rotate exposed credentials.

Evidence and limits

IBM bulletin 7293016 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. The affected-range/earlier-fix inconsistency is preserved rather than silently reconciled.

Sources