IBMCVE-2026-12944
IBM Langflow OSS: server-side request forgery
Critical9.6CVE-2026-12944 · Published Sep 14, 2026 · updated Sep 16, 2026
IBM Langflow OSS 1.0.0 through 1.10.0 can allow attackers to execute arbitrary Python code with root privileges (UID=0) on the Langflow server by submitting components containing socket or urllib imports. This enables: (1) AWS credential theft via IMDSv1 SSRF with full IAM role permissions, (2) arbitrary file exfiltration from the container filesystem, and (3) lateral movement to internal services (PostgreSQL, Redis) within the Docker network. The scanner incorrectly returns "validated": true, providing a false security signal.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Langflow OSS Product | >= 1.0.0, <= 1.10.0 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-918
More IBM advisories
All IBM| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 14 | IBM MQ: information disclosure | Medium6.8 | No fix yet |
| Sep 14 | IBM Business Automation Workflow containers and traditional: XML external entity | High7.1 | No fix yet |
| Sep 14 | IBM Cloud Pak for Business Automation: missing authorization | Medium5.4 | No fix yet |
| Sep 14 | IBM Cloud Pak for Business Automation: denial of service | Medium6.5 | No fix yet |
| Sep 14 | IBM Sterling Secure Proxy: improper authorization | Medium4.3 | No fix yet |
| Sep 14 | IBM Sterling Secure Proxy: spoofing | Medium5.4 | No fix yet |