# CVE-2026-93447 — IBM Langflow OSS

> As of 2026-10-08, CVE-2026-93447 is a HIGH-severity vulnerability in IBM Langflow OSS, CVSS v3.1 7.5, EPSS 0.4% (36.2th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-93447, most recently “IBM Langflow OSS Multiple Vulnerabilities Including Two Critical Unauthenticated RCE Flaws (CVE-2026-104334, CVE-2026-93674)”.

**Last updated:** 2026-10-08

## What is CVE-2026-93447?

IBM Langflow OSS 1.0.0 through 1.12.2 could allow an attacker with access to the server secret and Redis write access to submit a malicious serialized cache value. When the value was retrieved, deserialization could have executed attacker-controlled code with the privileges of the service process.

The record classifies CVE-2026-93447 under weakness class [CWE-502](https://intel.threadlinqs.com/cwe/CWE-502). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 4 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **EPSS (FIRST):** 0.4% probability of exploitation in the next 30 days, higher than 36.2% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-10-07, last modified 2026-10-08

## Is CVE-2026-93447 being exploited?

It currently carries a trending score of 43 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [IBM](https://intel.threadlinqs.com/vendors/ibm): Langflow OSS

## How to fix CVE-2026-93447

No vendor patch reference has been recorded for CVE-2026-93447 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-93447

1 tracked threat in the Threadlinqs corpus references CVE-2026-93447, either in the campaign’s CVE list or as an indicator on the campaign record.

- [IBM Langflow OSS Multiple Vulnerabilities Including Two Critical Unauthenticated RCE Flaws (CVE-2026-104334, CVE-2026-93674)](https://intel.threadlinqs.com/threat/TL-2026-3314) — CRITICAL · 2026-10-11

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-11.

**Vendor advisory and patch**

- [ibm.com — vendor advisory](https://www.ibm.com/support/pages/node/7290694)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-93447
Full detection coverage and IOCs for threats exploiting CVE-2026-93447 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp