What is CVE-2026-0772?

CVE-2026-0772 is a high-severity vulnerability in Langflow, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-01-23.

How severe is CVE-2026-0772?

High severity. CVSS v3 base score is 7.5 out of 10.

Deserialization in Langflow

CVE-2026-0772

Langflow Disk Cache Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Authentication is required to exploit this vulnerability. The specific flaw exists within the disk cache service. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-27919.

Vulnerability class: Insecure Deserialization

EPSS: 0.009 (55.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Langflow — versions 1.5.0.post2, 1.5.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

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

Frequently asked questions

What is CVE-2026-0772?: CVE-2026-0772 is a high-severity vulnerability in Langflow, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-01-23.
How severe is CVE-2026-0772?: High severity. CVSS v3 base score is 7.5 out of 10.