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CVE-2026-0770.

Severity, exploit probability and exploitation status for one vulnerability, drawn from NVD, FIRST EPSS and CISA's exploited catalogue.

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known exploited Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability

Vendor / product: Langflow - Langflow
Listed by CISA: 2026-07-21
Federal fix deadline: 2026-07-24 (passed)
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.

Scores

CVSS 3.0: 9.8 critical CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 56.3% estimated probability of exploitation in the next 30 days (higher than 99% of all CVEs)
Weakness class: CWE-829

ATT&CK techniques

inferred from weakness class no curated mapping exists for this CVE; these are the techniques typically seen with CWE-829 vulnerabilities

ReconnaissanceResource DevelopmentInitial Access Execution Persistence Privilege Escalation StealthDefense ImpairmentCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact

T1195 Supply Chain Compromise

Initial Access

Adversaries may manipulate products or product delivery mechanisms prior to receipt by a final consumer for the purpose of data or system compromise.

via sub-technique T1195.001 Compromise Software Dependencies and Development Tools

Inferred from CWE-829.

T1195 on attack.mitre.org

T1574 Hijack Execution Flow

ExecutionStealth

Adversaries may execute their own malicious payloads by hijacking the way operating systems run programs.

via sub-technique T1574.006 Dynamic Linker Hijacking

via sub-technique T1574.013 KernelCallbackTable

Inferred from CWE-829.

T1574 on attack.mitre.org

T1176 Software Extensions

Persistence

Adversaries may abuse software extensions to establish persistent access to victim systems.

Inferred from CWE-829.

T1176 on attack.mitre.org

T1505 Server Software Component

Persistence

Adversaries may abuse legitimate extensible development features of servers to establish persistent access to systems.

via sub-technique T1505.004 IIS Components

via sub-technique T1505.005 Terminal Services DLL

Inferred from CWE-829.

T1505 on attack.mitre.org

T1055 Process Injection

Privilege EscalationStealth

Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges.

Inferred from CWE-829.

T1055 on attack.mitre.org

T1620 Reflective Code Loading

Stealth

Adversaries may reflectively load code into a process in order to conceal the execution of malicious payloads.

Inferred from CWE-829.

T1620 on attack.mitre.org

See these techniques on the full ATT&CK matrix.

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.

Published: 2026-01-23
Last modified: 2026-07-22
NVD status: Analyzed

References

Covered in Decrypted

A hospital billing vendor's breach, and the 147 million records it inherited (2026-07-22)

CVSS measures how bad exploitation would be; EPSS estimates how likely exploitation is within 30 days; the CISA listing means it is already happening. Read them together: a CVSS 9.8 with EPSS 0.04% is usually less urgent than a CVSS 7.2 on the exploited list. Data: NVD, FIRST EPSS, CISA KEV; detail is cached for a week, scores for a day. ATT&CK techniques come from the CTID KEV mappings project where a curated mapping exists, otherwise they are inferred from the weakness class and labelled as such. ATT&CK is a registered trademark of The MITRE Corporation. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.