Overview

The CVE-2025-26430 vulnerability presents a serious threat to system integrity and data confidentiality. It arises from a logic error in the getDestinationForApp function of SpaAppBridgeActivity, potentially enabling a cross-user file reveal. This can lead to a local escalation of privilege without any additional execution privileges necessary. Given that user interaction is not required for exploitation, the vulnerability is particularly dangerous and requires immediate attention.

Vulnerability Summary

CVE ID: CVE-2025-26430
Severity: High (7.8 CVSS score)
Attack Vector: Local
Privileges Required: None
User Interaction: Not required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

SpaAppBridgeActivity | All versions prior to patch

How the Exploit Works

The exploit targets the logic error in the getDestinationForApp function of SpaAppBridgeActivity. This error allows for a cross-user file reveal. An attacker can exploit this vulnerability to escalate privileges locally, without the need for any additional execution privileges. This means that an attacker could potentially access files and data that they would normally be restricted from, potentially leading to system compromise or data leakage.

Conceptual Example Code

Although there’s no specific exploit code, an attacker could potentially manipulate the logic error in the getDestinationForApp function. Here’s a conceptual example of how this might occur, using pseudocode:

def exploit():
# Instantiate SpaAppBridgeActivity object
app = SpaAppBridgeActivity()
# Manipulate the faulty getDestinationForApp method
app.getDestinationForApp("malicious_payload")

It’s important to note that the actual exploitation process would likely be far more complex and would require extensive knowledge of the affected system’s architecture and the specific implementation of the SpaAppBridgeActivity code.