What is CVE-2026-69400?

CVE-2026-69400 is a critical-severity vulnerability in Microsoft Azure Logic Apps, classified under Path Traversal. CVSS score: 9.6/10. Published 2026-08-20.

How severe is CVE-2026-69400?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Path Traversal in Microsoft Azure Logic Apps

CVE-2026-69400

Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Logic Apps allows an unauthorized attacker to elevate privileges over a network.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-08-20 · last modified 2026-08-24.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (59.6th percentile), scored 2026-10-06.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.009 · change: +0.004

Affected products

Weakness classification (CWE)

CWE-22 — Path Traversal

References

Azure Logic Apps Elevation of Privilege Vulnerability (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-69400?: CVE-2026-69400 is a critical-severity vulnerability in Microsoft Azure Logic Apps, classified under Path Traversal. CVSS score: 9.6/10. Published 2026-08-20.
How severe is CVE-2026-69400?: Critical severity. CVSS v3 base score is 9.6 out of 10.