CVE-2026-8966: Vulnerability in Mozilla Firefox
Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
AI Analysis
Technical Summary
CVE-2026-8966 is an information disclosure vulnerability affecting the IP Protection component in Mozilla Firefox. The flaw could potentially allow unauthorized information exposure. Mozilla fixed this vulnerability in Firefox 151 as part of a security advisory (MFSA 2026-46) that addressed multiple vulnerabilities. The advisory classifies the impact of CVE-2026-8966 as low. No CVSS score is provided. The vendor advisory is the authoritative source confirming the fix and impact.
Potential Impact
The vulnerability allows information disclosure in the IP Protection component, which could lead to unauthorized access to certain information. Mozilla rates the impact as low. There are no reports of exploitation in the wild. The fix is included in Firefox 151, mitigating the risk for users who update.
Mitigation Recommendations
Mozilla has fixed this vulnerability in Firefox 151. Users should update to Firefox 151 or later to remediate this issue. Since the vendor advisory confirms the fix, no additional mitigation steps are required beyond applying the official update.
CVE-2026-8966: Vulnerability in Mozilla Firefox
Description
Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-8966 is an information disclosure vulnerability affecting the IP Protection component in Mozilla Firefox. The flaw could potentially allow unauthorized information exposure. Mozilla fixed this vulnerability in Firefox 151 as part of a security advisory (MFSA 2026-46) that addressed multiple vulnerabilities. The advisory classifies the impact of CVE-2026-8966 as low. No CVSS score is provided. The vendor advisory is the authoritative source confirming the fix and impact.
Potential Impact
The vulnerability allows information disclosure in the IP Protection component, which could lead to unauthorized access to certain information. Mozilla rates the impact as low. There are no reports of exploitation in the wild. The fix is included in Firefox 151, mitigating the risk for users who update.
Mitigation Recommendations
Mozilla has fixed this vulnerability in Firefox 151. Users should update to Firefox 151 or later to remediate this issue. Since the vendor advisory confirms the fix, no additional mitigation steps are required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-05-19T12:30:10.538Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-46/","vendor":"Mozilla"}]
Threat ID: 6a0c677fec166c07b0a99808
Added to database: 5/19/2026, 1:37:03 PM
Last enriched: 5/19/2026, 1:53:49 PM
Last updated: 5/20/2026, 5:48:27 PM
Views: 12
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