CVE-2026-0770: Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability
Vulnerability summary
CVE-2026-0770 is a critical (CVSS 9.8) vulnerability in Langflow. It is known to be exploited: CISA lists it, first on 21-07-2026. EPSS estimates a 62.56% chance of exploitation in the next 30 days, higher than 99.1% of scored vulnerabilities. 2 public exploits are recorded.
Timeline
- 23-01-2026PublishedVulnerability first disclosed.
- 21-07-2026Added to CISA KEVLangflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability
- 22-07-2026Last modifiedVulnerability information updated.
- 24-07-2026CISA remediation dueApply mitigations per vendor instructions.
Description
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.
CVSS metrics
3 scores · 3 sources · 2 versions- NVDNIST9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
62.56%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
-1.28 pp
From 63.84% on 21-09-2026
Known exploited
Compare KEV catalogs- Added
- 21-07-2026
- Federal due date
- 24-07-2026
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. github.com/langflow-ai/langflow/releases/tag/v1.9.0 nvd.nist.gov/vuln/detail/CVE-2026-0770
Public exploits
2 foundLangflow Unauthenticated RCE (validate endpoint)
exploit/multi/http/langflow_rce_cve_2026_0770
Maturity: poc
Langflow 1.3.0 - Remote Code Execution
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Langflow1 product
- langflow1.4.2 | ≤ 1.7.3
PyPI1 product
- langflow≤ 1.7.3
2 vendors · 2 products
References
8 links- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-0770Government ResourceUS Government Resource
- pypi.org/project/langflowPACKAGE