---
title: "CVE-2026-93447: IBM Langflow OSS - Insecure Deserialization"
description: "IBM Langflow OSS 1.0.0 through 1.12.2 contains an insecure deserialization vulnerability caused by malicious serialized cache values in Redis, letting attackers with server secret and Redis write access execute code with service privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-93447/
---

# CVE-2026-93447 IBM Langflow OSS - Insecure Deserialization

IBM Langflow OSS 1.0.0 through 1.12.2 contains an insecure deserialization vulnerability caused by malicious serialized cache values in Redis, letting attackers with server secret and Redis write access execute code with service privileges.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.44% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-93447)

## Details

Type

Insecure Deserialization

Impact

Remote Code Execution

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

7 October 2026

Updated

15 October 2026

Weakness

[CWE-502](https://cwe.mitre.org/data/definitions/502.html)

## Vendor fix

Update to the latest version beyond 1.12.2.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-93447](https://nvd.nist.gov/vuln/detail/CVE-2026-93447)
- [https://www.ibm.com/support/pages/node/7290694](https://www.ibm.com/support/pages/node/7290694)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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