CVE-2026-0770: Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability

In short

Langflow Langflow has a weakness classified as inclusion of functionality from untrusted control sphere (CWE-829). CISA added it to its Known Exploited Vulnerabilities catalog on 2026-07-21. NVD lists CVSS 3.0 at 9.8 CRITICAL.

What it is

“Langflow contains an inclusion of functionality from untrusted control sphere vulnerability that allows remote attackers to execute arbitrary code on affected installations.” — CISA KEV, retrieved 2026-11-01

“Langflow exec_globals Inclusion of Functionality from Untrusted Control Sphere Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the exec_globals parameter provided to the validate endpoint. The issue results from the inclusion of a resource from an untrusted control sphere. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-27325.” — NVD, retrieved 2026-11-01

Who is affected

Langflow Langflow. NVD lists the following versions as affected:

• Versions through 1.7.3

Exploitation status

CISA KEV added: 2026-07-21. Known ransomware campaign use: Not reported by CISA. Due date CISA set for US federal civilian agencies: 2026-07-24.

Scores

NVD CVSS 3.0: 9.8 CRITICAL; vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source [email protected].

EPSS by FIRST: 62.56%; percentile 99.19; score date 2026-10-31. EPSS estimates the probability of exploitation in the next 30 days.

CWE: CWE-829.

Timeline

CISA required action

“Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.” — CISA KEV

What to do

• Confirm whether you run Langflow Langflow and which version.
• Apply the vendor update or mitigation in the vendor advisory.
• Follow CISA’s required action.
• Review the vendor guidance on signs of compromise.
• Track the fix through completion.

References

• Third Party Advisory: https://www.zerodayinitiative.com/advisories/ZDI-26-036/
• NVD detail
• CVE.org record
• CISA KEV catalog

Sources and dates

CISA Known Exploited Vulnerabilities Catalog, version 2026.10.30; retrieved 2026-11-01. CISA KEV data: CC0 1.0. No endorsement by CISA.

NVD retrieved: 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.

EPSS scores by FIRST; score date 2026-10-31.