What is CVE-2026-7787?

CVE-2026-7787 is a high-severity vulnerability in IBM Langflow Oss, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2026-06-11.

How severe is CVE-2026-7787?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in IBM Langflow Oss

CVE-2026-7787

IBM Langflow OSS 1.0.0 through 1.9.1 could allow an authenticated user to read or modify sensitive information by bypassing authentication using insecure direct object references.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-06-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (37.1th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

IBM Langflow Oss — versions 1.0.0
Langflow

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

www.ibm.com/support/pages/node/7275453 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-7787?: CVE-2026-7787 is a high-severity vulnerability in IBM Langflow Oss, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2026-06-11.
How severe is CVE-2026-7787?: High severity. CVSS v3 base score is 7.5 out of 10.