# CVE-2026-28588: Google Android

- Exploited (CISA KEV): no
- Published: 2026-11-02
- CVSS: 8.4 HIGH (v3.1)
- EPSS: no score

In shouldBlockDirectoryFromTree of ExternalStorageProvider.java, there is a possible way to access protected data due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | No public claim | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | No public claim | — | — |
| F5 | No public claim | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

## Social

1 posts seen since 2026-11-02.

- bluesky 2026-11-02: CVE-2026-28588 - Android ExternalStorageProvider Logic Error Privilege Escalation CVE ID : CVE-2026-28588    Published : Nov. 2, 2026, 8:17 p.m. \| 46 minutes ago    Description : In shouldBlockDirectoryFromTree of ExternalStorageProvider.java, there is a possible way to access... (https://bsky.app/profile/cve.skyfleet.blue/post/cgbtv5farqmnh)

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2026-28588 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2026-28588