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CVE-2026-76059

8.8 · HIGH

IBM Langflow OSS 1.0.0 through 1.11.5 An attacker who could submit custom component source code could bypass the static security scanner by crafting an annotated class-body assignment that resolved…

Published Sep 10, 2026langflowCWE-693EPSS 0.73%

Overview

CVE-2026-76059 is a high-severity vulnerability affecting langflow langflow. It was published on September 10, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

IBM Langflow OSS 1.0.0 through 1.11.5 An attacker who could submit custom component source code could bypass the static security scanner by crafting an annotated class-body assignment that resolved to a dangerous callable through alias tracking; the resolved value was never checked against the dangerous callable blocklist due to the logic error. If the crafted component reached the runtime execution path, the attacker could cause arbitrary operating system commands to execute on the server in-process, with the privileges of the running service.

Remediation

Check the references section for vendor advisories and patches from langflow. Update langflow to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
langflowlangflow>= 1.0.0, < 1.11.6Affected

References

Refwww.ibm.com/support/pages/node/7286666

How CyberStrike helps

Frequently asked questions

What is CVE-2026-76059?

CVE-2026-76059 is a high-severity vulnerability affecting langflow langflow. It was published on September 10, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-76059?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-76059?

Check the references section for vendor advisories and patches from langflow. Update langflow to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-76059?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-76059 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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