# CVE-2026-104334: IBM Langflow OSS code injection vulnerability

Source: https://junglewise.ai/threats/cve-2026-104334-ibm-langflow-oss-1-0-0-through-1-12-2-could-allow-a-remote  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-07. Updated: 2026-10-07  
License: CC BY 4.0 with a link back

CVE-2026-104334 · Severity: critical · CVSS 9.8 · Published 2026-10-07

IBM Langflow OSS is a platform for building and executing automated workflows and AI pipelines. The vulnerability allows remote attackers to execute arbitrary code on the server, potentially gaining full control of the system and accessing or modifying sensitive data. An attacker can exploit this through improper input validation in the code generation features without requiring authentication in the primary CVE-2026-104334 case.

Technologies: [IBM Langflow OSS](https://junglewise.ai/threats/technologies/langflow-oss). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-104334 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-104334 being exploited in the wild.

**How severe is CVE-2026-104334?** Critical severity, with a CVSS score of 9.8, published 7 October 2026.

**Which products and versions are affected?** IBM Langflow OSS 1.0.0 through 1.12.2.

**Is there a fix for CVE-2026-104334?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-104334 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-104334?** Check whether you run IBM Langflow OSS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

CVE-2026-104334 is a code injection vulnerability (CWE-94) in Langflow OSS's code generation mechanism that lacks proper input sanitization. The vulnerability is remotely exploitable over the network with no authentication or user interaction required, allowing unauthenticated attackers to inject and execute arbitrary code. Multiple related CVEs exist in the same affected versions, involving additional code injection vectors, path traversal, and access control bypasses.

## Affected products

- IBM Langflow OSS 1.0.0 through 1.12.2

## Timeline

- 2026-10-07: disclosed

## References

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

## Related threats

- [IBM Langflow OSS path traversal arbitrary file read and write](https://junglewise.ai/threats/cve-2026-97677-ibm-langflow-oss-1-0-0-through-1-12-2-an-authenticated-flow)
- [IBM Langflow OSS authentication bypass](https://junglewise.ai/threats/cve-2026-93680-ibm-langflow-oss-1-0-0-through-1-12-8-could-allow-a-remote)
- [IBM Langflow OSS denial of service via resource exhaustion](https://junglewise.ai/threats/cve-2026-90991-ibm-langflow-oss-1-0-0-through-1-12-4-could-allow-a-remote)
- [IBM Langflow OSS path traversal arbitrary file overwrite](https://junglewise.ai/threats/cve-2026-77819-ibm-langflow-oss-1-0-0-through-1-12-3-could-allow-a-remote)
- [IBM Langflow OSS improper sanitization of secrets in exports](https://junglewise.ai/threats/cve-2026-77817-ibm-langflow-oss-1-0-0-through-1-12-4-could-allow-a-remote)