What is CVE-2026-26149?

CVE-2026-26149 is a critical-severity vulnerability in Microsoft Power Apps Desktop Client, classified under CWE-150. CVSS score: 9.0/10. Published 2026-04-14.

How severe is CVE-2026-26149?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Vulnerability in Microsoft Power Apps Desktop Client

CVE-2026-26149

Improper neutralization of escape, meta, or control sequences in Microsoft Power Apps allows an authorized attacker to perform spoofing over a network.

EPSS: 0.001 (21.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

Affected products

Microsoft Power Apps Desktop Client — versions 1.0.0
Microsoft Power_apps

Weakness classification (CWE)

CWE-150

References

Microsoft Power Apps Desktop Client Spoofing Vulnerability (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-26149?: CVE-2026-26149 is a critical-severity vulnerability in Microsoft Power Apps Desktop Client, classified under CWE-150. CVSS score: 9.0/10. Published 2026-04-14.
How severe is CVE-2026-26149?: Critical severity. CVSS v3 base score is 9.0 out of 10.