Description
In onCreate of PaymentDefaultDialog.java, there is a possible way to change default payment app due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Published: 2026-09-08
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Local Privilege Escalation
Action: Assess Impact
AI Analysis

Impact

The flaw resides in the onCreate method of PaymentDefaultDialog.java, default payment application through a confused deputy scenario. No additional execution privileges are required and no user interaction is needed, giving the attacker the same privilege level as the payment service and enabling unauthorized manipulation of payment functions.

Affected Systems

Android devices that contain the PaymentDefaultDialog component are affected. The advisory does not specify a particular release, so any current Android build that includes this code path should be considered at risk until Google releases a patch.

Risk and Exploitability

The CVSS score of 7.8 indicates high severity; however, the EPSS score is below 1% and the vulnerability is not listed in the CISA KEV catalog, implying low exploitation probability. Exploitation requires local access and no user interaction, limiting the threat to the device but granting the attacker privileges sufficient to alter payment settings.

Generated by OpenCVE AI on September 11, 2026 at 05:52 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest Google Android security patch that fixes the PaymentDefaultDialog issue as soon as it is released.
  • Limit the ability to change the default payment app so that only the system‑native payment application or explicitly approved apps can perform the change.
  • Verify installed payment applications and remove any that are not required or do not come from trusted sources.

Generated by OpenCVE AI on September 11, 2026 at 05:52 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 15 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:google:android:15.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:16.0:-:*:*:*:*:*:*
cpe:2.3:o:google:android:16.0:qpr2:*:*:*:*:*:*
cpe:2.3:o:google:android:17.0:-:*:*:*:*:*:*

Fri, 11 Sep 2026 06:15:00 +0000

Type Values Removed Values Added
Title Confused Deputy Allows Local Escalation to Change Default Payment App

Thu, 10 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Title Confused Deputy Allows Local Escalation to Change Default Payment App
Weaknesses CWE-269

Thu, 10 Sep 2026 19:15:00 +0000

Type Values Removed Values Added
Title Confused Deputy in Android Payment Default Dialog Allows Local Privilege Escalation

Thu, 10 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-441
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 10 Sep 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google android
Vendors & Products Google
Google android

Wed, 09 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Title Confused Deputy in Android Payment Default Dialog Allows Local Privilege Escalation
Weaknesses CWE-269

Tue, 08 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Description In onCreate of PaymentDefaultDialog.java, there is a possible way to change default payment app due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: google_android

Published:

Updated: 2026-09-10T15:08:13.673Z

Reserved: 2026-03-02T19:11:02.946Z

Link: CVE-2026-28600

cve-icon Vulnrichment

Updated: 2026-09-10T15:08:06.362Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-08T19:17:52.430

Modified: 2026-09-15T14:26:16.880

Link: CVE-2026-28600

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-11T06:00:10Z

Weaknesses
  • CWE-441

    Unintended Proxy or Intermediary ('Confused Deputy')