Langflow OSS vulnerability

IBM Langflow OSS 1.0.0 through 1.11.5 could allow an authenticated attacker to execute arbitrary code due to an incomplete denylist in the security scanner.

Published 10 Sep 2026Updated 12 Sep 20261 sources
CVSS 8.8

What happened

IBM Langflow OSS 1.0.0 through 1.11.5 could allow an authenticated attacker to execute arbitrary code due to an incomplete denylist in the security scanner.

Affected versions

Langflow OSS: 1.0.0 through 1.11.5 (semver) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.