CVE-2026-87429: Missing authorization in ServiceWorker in Google Chrom
CVE-2026-87429 analysis covering impact, affected products, versions, remediation, and cross-checked defender guidance.
CVE-2026-87429 is a vulnerability published by NVD on 9/9/2026.
What happened
Missing authorization in ServiceWorker in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Low)
Affected products and versions
- google chrome unspecified version (before 153.0.8010.36)
Severity and weakness
CVSS: MEDIUM 6.5. Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
Weaknesses: CWE-862.
Known exploitation
No CISA KEV entry is currently attached to the NVD record.
What defenders should do
- Identify whether the affected product and version range exists in production.
- Review vendor advisories and release notes before change windows.
- Patch, upgrade, disable the vulnerable component, or apply vendor mitigations.
- Verify the running version after deployment, not only the package inventory.