CVE-2026-55256 Denial of service in Android

What is CVE-2026-55256?

CVE-2026-55256 is a medium-severity denial of service vulnerability in Google Android, published on 8 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In parsePartHeaders of multiple files, there is a possible persistent denial of service due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.

Weakness: CWE-20

Which versions are affected by CVE-2026-55256?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2026-55256?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-55256 being exploited?

There is no known exploitation of CVE-2026-55256 in the wild and no public exploit code.

Other vulnerabilities in Google Android

• CVE-2026-58704 Google Pixel Improper Authorization Exploited High 8.8
• CVE-2025-48543 Android Runtime Use-After-Free Exploited High 8.8
• CVE-2023-35674 Android Framework Privilege Escalation Exploited High 8.8
• CVE-2025-48595 Android Framework Integer Overflow Exploited High 8.4
• CVE-2024-32896 Android Pixel Privilege Escalation Exploited High 8.1

All Google Android vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as A-513581389, ASB-A-513581389, GHSA-2ph9-87vp-qq34.