Monitor vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
9.8
CVE-2026-16382: Firefox Service Workers Security Bypass
CVE-2026-16382
CVE-2026-16382
Summary
A security vulnerability in Firefox's Service Workers component can be bypassed, allowing attackers to potentially steal sensitive information. This issue was fixed in a recent Firefox update, so it's essential to ensure you're running the latest version to stay protected. If you're using an outdated version of Firefox, update it as soon as possible.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| mozilla | firefox | All versions |
Original title
Mitigation bypass in the DOM: Service Workers component
Original description
Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153.
Vulnerability type
CWE-693
Protection Mechanism Failure
Published: 21 Jul 2026 · Updated: 23 Jul 2026 · First seen: 21 Jul 2026