CVE-2026-8964
Spoofing issue in the Popup Blocker component.
Published May 19, 2026 · updated Jul 23, 2026 · mozilla firefox
Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 19, 2026 · NIST NVD
Detected
Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Jul 23, 2026 · NIST NVD
Updated
Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Affected
- cpe mozilla/firefoxversion unspecified
- cpe mozilla/thunderbirdversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-8964
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-8964
Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
nvd.nist.gov