# CVE-2026-107327: IBM Langflow OSS arbitrary code execution due to missing authorization

Source: https://junglewise.ai/threats/cve-2026-107327-ibm-langflow-oss-1-0-0-through-1-12-4-could-allow-a-remote  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-29. Updated: 2026-10-29  
License: CC BY 4.0 with a link back

CVE-2026-107327 · Severity: critical · CVSS 9.9 · Published 2026-10-29

IBM Langflow OSS is a low-code platform for building AI applications that allows developers to create workflows using visual components. An authenticated attacker with low-level privileges can bypass authorization controls and execute arbitrary code on the server, potentially compromising the entire application and underlying infrastructure. This vulnerability requires a login but allows privilege escalation and full system compromise.

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

## Quick answers

**Is CVE-2026-107327 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-107327 being exploited in the wild.

**How severe is CVE-2026-107327?** Critical severity, with a CVSS score of 9.9, published 29 October 2026.

**Which products and versions are affected?** IBM Langflow OSS 1.0.0 through 1.12.4.

**Is there a fix for CVE-2026-107327?** 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-2026-107327 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-107327?** 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

The vulnerability stems from missing authorization checks in code-execution components within Langflow OSS. An authenticated attacker can configure built-in code-execution components with malicious inputs, bypassing administrator-only restrictions that should prevent this. The flaw affects versions 1.0.0 through 1.12.4 and allows remote code execution in the server process context.

## Affected products

- IBM Langflow OSS 1.0.0 through 1.12.4

## Timeline

- 2026-10-29: disclosed

## References

- [https://www.ibm.com/support/pages/node/7293016](https://www.ibm.com/support/pages/node/7293016)

## 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)