What is CVE-2026-10134?

CVE-2026-10134 is a critical-severity vulnerability in Ibm Langflow Oss, classified under Code Injection. CVSS score: 10.0/10. Published 2026-06-30.

How severe is CVE-2026-10134?

Critical severity. CVSS v3 base score is 10.0 out of 10.

RCE in Ibm Langflow Oss

CVE-2026-10134

IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read and modify every flow, conversation, message, file upload, and saved component in the Langflow database, can connect to internal services, abuse cloud metadata endpoints, laterally move to other tenants on the same Langflow instance, and Establish persistence by modifying the public flow's `tool_code` so normal `/api/v1/build/...` calls by any user re-execute attacker code at each build.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.004 (28.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Ibm Langflow Oss — versions 1.0.0
Langflow

Weakness classification (CWE)

CWE-94 — Code Injection

References

psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-10134?: CVE-2026-10134 is a critical-severity vulnerability in Ibm Langflow Oss, classified under Code Injection. CVSS score: 10.0/10. Published 2026-06-30.
How severe is CVE-2026-10134?: Critical severity. CVSS v3 base score is 10.0 out of 10.