CVE-2026-8967: Vulnerability in Mozilla Firefox
CVE-2026-8967 is an information disclosure vulnerability in the Graphics: WebGPU component of Mozilla Firefox. It was addressed in Firefox 151 and Thunderbird 151. The vulnerability has a high CVSS score of 7.5, indicating a significant impact on confidentiality without affecting integrity or availability. Mozilla has released official fixes in Firefox 151 and Thunderbird 151 to remediate this issue. There are no known exploits in the wild at this time. Users are advised to update to the fixed versions to mitigate the risk.
AI Analysis
Technical Summary
CVE-2026-8967 is an information disclosure vulnerability affecting the Graphics: WebGPU component in Mozilla Firefox. The flaw could allow unauthorized disclosure of information, impacting confidentiality. This vulnerability was fixed in Firefox 151 and Thunderbird 151. The CVSS v3.1 base score is 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), indicating it can be exploited remotely without privileges or user interaction and results in high confidentiality impact. Mozilla's official security advisory (MFSA2026-46) confirms the fix and provides additional context alongside other vulnerabilities addressed in the same release.
Potential Impact
The vulnerability allows remote attackers to disclose sensitive information via the WebGPU graphics component, potentially compromising user data confidentiality. It does not impact integrity or availability. The high CVSS score reflects the severity of the confidentiality breach. No active exploitation has been reported, but the risk remains until patched.
Mitigation Recommendations
Mozilla has released official fixes for this vulnerability in Firefox 151 and Thunderbird 151. Users and administrators should update to these versions or later to remediate the issue. Since this is not a cloud service, patching the client software is required. There are no vendor advisories indicating that no action is required or that the issue is already mitigated without updates. Patch status is confirmed by the vendor advisory.
CVE-2026-8967: Vulnerability in Mozilla Firefox
Description
CVE-2026-8967 is an information disclosure vulnerability in the Graphics: WebGPU component of Mozilla Firefox. It was addressed in Firefox 151 and Thunderbird 151. The vulnerability has a high CVSS score of 7.5, indicating a significant impact on confidentiality without affecting integrity or availability. Mozilla has released official fixes in Firefox 151 and Thunderbird 151 to remediate this issue. There are no known exploits in the wild at this time. Users are advised to update to the fixed versions to mitigate the risk.
CVSS v3.1
Score 7.5high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-8967 is an information disclosure vulnerability affecting the Graphics: WebGPU component in Mozilla Firefox. The flaw could allow unauthorized disclosure of information, impacting confidentiality. This vulnerability was fixed in Firefox 151 and Thunderbird 151. The CVSS v3.1 base score is 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), indicating it can be exploited remotely without privileges or user interaction and results in high confidentiality impact. Mozilla's official security advisory (MFSA2026-46) confirms the fix and provides additional context alongside other vulnerabilities addressed in the same release.
Potential Impact
The vulnerability allows remote attackers to disclose sensitive information via the WebGPU graphics component, potentially compromising user data confidentiality. It does not impact integrity or availability. The high CVSS score reflects the severity of the confidentiality breach. No active exploitation has been reported, but the risk remains until patched.
Mitigation Recommendations
Mozilla has released official fixes for this vulnerability in Firefox 151 and Thunderbird 151. Users and administrators should update to these versions or later to remediate the issue. Since this is not a cloud service, patching the client software is required. There are no vendor advisories indicating that no action is required or that the issue is already mitigated without updates. Patch status is confirmed by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-05-19T12:30:11.954Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-46/","vendor":"Mozilla"}]
Threat ID: 6a0c677fec166c07b0a9980c
Added to database: 05/19/2026, 13:37:03 UTC
Last enriched: 05/26/2026, 20:42:02 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 93
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