CVE-2026-8966
Information Disclosure in Firefox IP Protection
Publication date: 2026-05-19
Last updated on: 2026-05-20
Assigner: Mozilla Corporation
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mozilla | firefox | to 151.0.0 (exc) |
| mozilla | thunderbird | to 151.0.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-200 | The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an information disclosure issue in the IP Protection component of Mozilla Firefox. It means that sensitive information could be exposed unintentionally due to a flaw in this component. The issue was addressed and fixed in Firefox version 151.
How can this vulnerability impact me? :
The impact of this vulnerability is the potential exposure of sensitive information through the IP Protection component. This could lead to unauthorized parties gaining access to information that should be protected, possibly compromising user privacy or security.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update Firefox to version 151 or later where the issue has been fixed.