CVE-2026-0089
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedIn multiple functions of PackageInstallerService.java, there is a possible way to install unverified apps due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA missing permission check in multiple functions of PackageInstallerService.java allows a local attacker to install unverified apps without user interaction, leading to local privilege escalation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 16.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify Android versionGo to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADB shellAffected if Version is exactly 16.0 (Android 16)
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Confirm PackageInstallerService presenceCheck if /system/framework/services.jar or /system/framework/services.jar contains PackageInstallerService.java classes - use 'pm list packages -s packageinstaller' via ADBAffected if Package installer service is present and accessible on the device
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Check for suspicious app installation eventsReview logcat output for 'package installer' events using 'logcat -d | grep -i installer' and look for installs without user interaction promptsAffected if Apps are being installed without user consent or verification prompts
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Audit INSTALL_PACKAGES permission grantsRun 'dumpsys package <packagename> | grep -i install' for apps with INSTALL_PACKAGES permission, or use 'pm list permissions -g | grep -i install_packages' via ADBAffected if Apps other than system update services hold the INSTALL_PACKAGES permission
Device is affected if running Android 16.0 AND suspicious or unauthorized app installations are occurring without user verification prompts, OR non-system apps hold the INSTALL_PACKAGES permission.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedApply the vendor security patch for CVE-2026-0089 which adds proper permission validation to the affected functions in PackageInstallerService.java.
Latest available Android 16.x security patch level or Android 17.x
- 1. Navigate to Settings > System > Software Update on the Android device
- 2. Check for and install any available system updates
- 3. Ensure the device receives the latest Android security patch level
- 4. After updating, verify the patch level by going to Settings > About Phone > Android version or Security patch level
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing5.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-0089 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-0089 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data