How severe is CVE-2026-0770?

CVE-2026-0770 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-0770 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-0770?

CVE-2026-0770 affects Langflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-0770?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-0770 have an EU (EUVD) identifier?

Yes. CVE-2026-0770 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4466.

When was CVE-2026-0770 published?

CVE-2026-0770 was published on 2026-01-23 and last updated on 2026-06-17.

CVE-2026-0770

CVE-2026-0770 is a critical-severity vulnerability in Langflow with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 10% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-829.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4466
Weakness: CWE-829
Affected product: Langflow
Published: 2026-01-23
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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 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.
How severe is CVE-2026-0770?: CVE-2026-0770 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-0770 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-0770?: CVE-2026-0770 affects Langflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-0770?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-0770 have an EU (EUVD) identifier?: Yes. CVE-2026-0770 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4466.
When was CVE-2026-0770 published?: CVE-2026-0770 was published on 2026-01-23 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-26-036/

Affected products (1)

cpe:2.3:a:langflow:langflow:1.4.2:-:*:*:*:*:*:*

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