---
title: "CVE-2026-0770: Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability"
url: https://erroneo.us/security/cve/CVE-2026-0770/
description: "CVE-2026-0770 (Langflow Langflow): Exploited in the wild (CISA KEV). Langflow execglobals Inclusion of Functionality from Untrusted Control Sphere Remote…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-01-23
date_modified: 2026-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-0770"
kev: true
cvss: 9.8
epss: 0.62562
license: All rights reserved. Quote with attribution and a link.
---

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

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Langflow Langflow. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2026-07-21, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2026-07-24 ; treat that as the outer limit, not the target.
- EPSS 62.6% , percentile 99: FIRST’s model estimates a 62.6% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Editorial verdict: Act now. Langflow CVE-2026-9198: Exploited Unauthenticated RCE — Langflow is now the most repeatedly exploited AI-agent builder on CISA's list; any network-reachable instance below 1.10.1 should be patched today and checked for compromise.

## What it is

Langflow execglobals 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 execglobals 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.

## Affected products (CVE record)

- Langflow Langflow: 1.4.2

## Severity

- zdi CVSS 3.0: 9.8 `CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2026-07-21; federal due date 2026-07-24. Known ransomware use: Unknown.
- 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 SSVC assessment: exploitation active , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 62.56% probability of exploitation activity in the next 30 days; percentile 99.

## Sources

- [Listed in CISA KEV notes (github.com)](https://github.com/langflow-ai/langflow/releases/tag/v1.9.0)
- [CVE.org record CVE-2026-0770](https://www.cve.org/CVERecord?id=CVE-2026-0770)
- [NVD entry CVE-2026-0770](https://nvd.nist.gov/vuln/detail/CVE-2026-0770)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-0770)
- [Listed in CISA KEV notes (cisa.gov)](https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk)
- [Listed in CISA KEV notes (cisa.gov)](https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk)
- [ZDI-26-036](https://www.zerodayinitiative.com/advisories/ZDI-26-036/)

---
Source page: https://erroneo.us/security/cve/CVE-2026-0770/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt