PT-2026-41919 · Mozilla · Firefox+1

Shihab Mirza · Published 2026-05-19 · Updated 2026-05-27 · CVE-2026-8965

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 151 Thunderbird versions prior to 151

Description An information disclosure issue exists within the DOM security component.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2026-8965

OPENSUSE-SU-2026:10863-1

Affected Products

Firefox

Thunderbird

References · 42

• https://ubuntu.com/security/CVE-2026-8965 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2026-46/#CVE-2026-8965 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10863-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-8965 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-8965 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-8965 · Security Note
• https://mozilla.org/security/advisories/mfsa2026-50 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2026-46 · Vendor Advisory
• https://suse.com/security/cve/CVE-2026-8958 · Note
• https://suse.com/security/cve/CVE-2026-8961 · Note
• https://suse.com/security/cve/CVE-2026-8951 · Note
• https://suse.com/security/cve/CVE-2026-8949 · Note
• https://suse.com/security/cve/CVE-2026-8959 · Note
• https://suse.com/security/cve/CVE-2026-8962 · Note
• https://suse.com/security/cve/CVE-2026-8973 · Note