What is CVE-2026-12945?

CVE-2026-12945 is a high-severity vulnerability in Ibm Langflow Oss, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.1/10. Published 2026-07-30.

How severe is CVE-2026-12945?

High severity. CVSS v3 base score is 7.1 out of 10.

Auth bypass in Ibm Langflow Oss

CVE-2026-12945

IBM Langflow OSS 1.0.0 through 1.10.1 allows authenticated users to access and manipulate other users' build jobs through improper access control on log retrieval and unauthenticated build endpoints.

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L.

Affected products

Ibm Langflow Oss — versions 1.0.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

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

Frequently asked questions

What is CVE-2026-12945?: CVE-2026-12945 is a high-severity vulnerability in Ibm Langflow Oss, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.1/10. Published 2026-07-30.
How severe is CVE-2026-12945?: High severity. CVSS v3 base score is 7.1 out of 10.