CVE-2026-26149 | Microsoft Power Apps Desktop Client Spoofing Vulnerability

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

Published: 2026-04-14 Last update: 2026-05-07 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2026-26149 is rated Moderate Risk (44.1/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.08%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-26149

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-15 0.08%

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-26149

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.0 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.3 6.0 [email protected]

Weakness enumeration for CVE-2026-26149

Affected software / configurations for CVE-2026-26149

Vendor Product Version Raw CPE
microsoft power_apps < 3.26032.10.0 cpe:2.3:a:microsoft:power_apps:*:*:*:*:*:windows:*:*

References for CVE-2026-26149

cvelogic Threat Intelligence