Arbitrary Code Injection Affecting langflow-base package, versions [0,0.9.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published29 Mar 2026
- disclosed27 Mar 2026
- creditkexinoh
Introduced: 27 Mar 2026
CVE-2026-33873 (opens in a new tab)How to fix?
Upgrade langflow-base to version 0.9.0 or higher.
Overview
Affected versions of this package are vulnerable to Arbitrary Code Injection through the Agentic Assistant validation process. An attacker can execute arbitrary server-side Python code by supplying input that causes the assistant to return malicious component code, which is then instantiated during validation.