CVE-2026-33873

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2026-33873

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33873.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-33873

Aliases

Downstream

ECHO-e568-958c-ec51

Published

2026-03-27T20:04:23.646Z

Modified

2026-05-20T08:11:35.637070656Z

Severity

9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N CVSS Calculator

Summary

Langflow has Authenticated Code Execution in Agentic Assistant Validation

Details

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.9.0, the Agentic Assistant feature in Langflow executes LLM-generated Python code during its validation phase. Although this phase appears intended to validate generated component code, the implementation reaches dynamic execution sinks and instantiates the generated class server-side. In deployments where an attacker can access the Agentic Assistant feature and influence the model output, this can result in arbitrary server-side Python execution. Version 1.9.0 fixes the issue.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33873.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-94"
    ]
}

References

Affected packages

Git / github.com/langflow-ai/langflow

Affected ranges

Type

GIT

Repo

https://github.com/langflow-ai/langflow

Events

Introduced

Fixed

7f3b01629629d3229550259d2a969525b2a09391

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.9.0"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33873.json"