# CVE-2026-97673 — IBM Langflow OSS

> As of 2026-10-08, CVE-2026-97673 is a HIGH-severity vulnerability in IBM Langflow OSS, CVSS v3.1 8.8, EPSS 0.4% (36.8th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-97673, 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-2026-97673?

IBM Langflow OSS 1.0.0 through 1.12.2 could allow a remote authenticated attacker to execute arbitrary code due to improper input validation.

The record classifies CVE-2026-97673 under weakness class [CWE-693](https://intel.threadlinqs.com/cwe/CWE-693). 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:** 8.8 — HIGH (`CVSS:3.1/AV:N/AC:L/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 36.8% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.9/10 — 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-2026-97673 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-2026-97673

No vendor patch reference has been recorded for CVE-2026-97673 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-2026-97673

1 tracked threat in the Threadlinqs corpus references CVE-2026-97673, 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-2026-97673
Full detection coverage and IOCs for threats exploiting CVE-2026-97673 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp