Keyguard bypass exposes notifications in Android Automotive OS
Key facts
- Attack vector
- Physical
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.
Summary
Google Android versions from 14, 15, 16, 16-qpr2 and 17 are affected in Android Automotive OS Multi-User Multi-Display configurations. The Heads-Up Notification system checks only the global keyguard state, which is tied to the driver's display, and the PassengerKeyguard fails to suppress notifications or intercept action PendingIntents, an improper authentication flaw (CWE-287). A physical occupant of a passenger display can view private notification content and execute actions for a secure passenger user without authenticating.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
A physical occupant on an Android Automotive OS (AAOS) Multi-User Multi-Display (MUMD) passenger display can view sensitive Heads-Up Notification (HUN) content and execute actions for a secure passenger user (User N) without authenticating. This bypasses the PassengerKeyguard because the HUN system only checks the global keyguard state, which is tied to the driver's unlocked display, and the PassengerKeyguard implementation fails to suppress HUNs or intercept action PendingIntents. Consequently, private notification data is disclosed, and user-N actions are executed without credential verification.
Why it matters now
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
Remediation
The sources list no fixed version for Android.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Timeline
- 2026-11-02 Threatist record created from CVE-2026-58915
- 2026-11-02 Alias added: GHSA-jgqv-5673-896c
- 2026-11-03 CVSS score added · CISA ADP
- 2026-11-03 Weakness changed · CISA ADP
- 2026-11-03 CISA SSVC decision points changed
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Sources
- CVE-2026-58915 · CVE Program
- CVE-2026-58915 · NVD
- FIRST EPSS
- GHSA-jgqv-5673-896c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences