What is CVE-2026-0770?

CVE-2026-0770 is a critical-severity vulnerability in Langflow, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 9.8/10. Published 2026-01-23.

How severe is CVE-2026-0770?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2026-0770 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Langflow

CVE-2026-0770

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…

EPSS: 0.104 (95.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Langflow — versions 1.4.2

Weakness classification (CWE)

CWE-829 — Inclusion of Functionality from Untrusted Control Sphere

Public proof-of-concept exploits

References

zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2026-0770?: CVE-2026-0770 is a critical-severity vulnerability in Langflow, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 9.8/10. Published 2026-01-23.
How severe is CVE-2026-0770?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2026-0770 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.