CVE-2026-0089

Local privilege escalation via unchecked verification experiments

Published Jun 1, 2026 · Updated Jun 1, 2026

Local privilege escalation in Google Android 16-qpr2 allows local users to install unverified apps without user interaction. The addDeveloperVerificationExperiment and clearDeveloperVerificationExperiment functions in PackageInstallerService.java omit a required permission check before modifying verification experiments. A low-privileged local caller can bypass developer-verification controls, enabling unverified app installation with device-wide confidentiality, integrity, and availability impact.

CVSS severity7.8
High
EPSS probability0.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in Google Android 16-qpr2 allows local users to install unverified apps without user interaction. The addDeveloperVerificationExperiment and clearDeveloperVerificationExperiment functions in PackageInstallerService.java omit a required permission check before modifying verification experiments. A low-privileged local caller can bypass developer-verification controls, enabling unverified app installation with device-wide confidentiality, integrity, and availability impact.

The record

CVE
CVE-2026-0089
Published
Jun 1, 2026
Updated
Jun 1, 2026
Vendor
Go standard library
Product
Android
Classifications
CWE-269, T1404
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=16-qpr2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Go standard library · Androidversion=16-qpr2

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1404Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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