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TI-2026-21140 Aliases CVE-2026-26149GHSA-grqv-qmhw-8pwc

Microsoft Power Apps Desktop Client Spoofing Vulnerability

Priority MEDIUM 42CWE-150Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00563 47th percentileScored 2026-11-07
Fix Fixed Microsoft Power Apps Desktop Client (Microsoft): 3.26032.10.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft Power Apps Desktop Client1.0.0 to before 3.26032.10.03.26032.10.0Patch availableCNA
  • Microsoft Power Apps Desktop Client VendorMicrosoft Affected 1.0.0 to before 3.26032.10.0 Fixed in 3.26032.10.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:power_apps:*:*:*:*:*:windows:*:*before 3.26032.10.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:power_apps:*:*:*:*:*:windows:*:* Versions before 3.26032.10.0 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft Power Apps Desktop Client (Microsoft) Fixed in 3.26032.10.0

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Security Feature Bypass
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft Power AppsFixed 3.26032.10.0 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26149
  2. 2026-10-03 Alias added: GHSA-grqv-qmhw-8pwc
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Patch 1

  • TI-2025-30219 Microsoft Power Apps Information Disclosure Vulnerability CVSS 3.1CRITICAL 9.1
  • TI-2026-42289 Copilot Cowork Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 9.3
  • TI-2026-24708 Microsoft Power Apps Remote Code Execution Vulnerability CVSS 3.1HIGH 8.0
  • TI-2026-16980 PowerApps Desktop Client Remote Code Execution Vulnerability CVSS 3.1HIGH 8.0
  • TI-2023-15356 Microsoft Power Apps (online) Spoofing Vulnerability CVSS 3.1MEDIUM 5.4
  • TI-2023-15330 Microsoft Power Apps Spoofing Vulnerability CVSS 3.1LOW 3.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences