VDB
GHSA-j5qx-hh9g-j6wj
GHSA-j5qx-hh9g-j6wj
PUBLISHED
CVSS 10 CRITICAL
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, and Firefox ESR < 140.9.
Risk Scores
CVSS 3.1
10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Timeline
- Mar 24, 2026 CVE Published
- Apr 10, 2026 Security Advisory
- Jun 30, 2026 CVE Updated
- Aug 6, 2026 Distribution Patch
- Aug 6, 2026 Distribution Patch
- Aug 6, 2026 Distribution Patch
- Aug 6, 2026 Distribution Patch
- Aug 6, 2026 Distribution Patch
- Aug 6, 2026 Distribution Patch
- Aug 6, 2026 Distribution Patch
- Aug 6, 2026 Distribution Patch
- Aug 6, 2026 Distribution Patch
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2016374 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-4689 advisory
- https://www.mozilla.org/security/advisories/mfsa2026-20 url
- https://www.mozilla.org/security/advisories/mfsa2026-21 url
- https://www.mozilla.org/security/advisories/mfsa2026-23 url
- https://access.redhat.com/errata/RHSA-2026:5930 url
- https://access.redhat.com/errata/RHSA-2026:8287 url
- https://access.redhat.com/errata/RHSA-2026:8288 url
- https://access.redhat.com/errata/RHSA-2026:8289 url
- https://access.redhat.com/errata/RHSA-2026:8290 url
- https://access.redhat.com/errata/RHSA-2026:8315 url
- https://access.redhat.com/errata/RHSA-2026:8427 url
- https://access.redhat.com/errata/RHSA-2026:8850 url
- https://access.redhat.com/security/cve/CVE-2026-4689 url
- https://bugzilla.redhat.com/show_bug.cgi?id=2450718 url
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4689.json url
- https://www.mozilla.org/security/advisories/mfsa2026-22 url
- https://www.mozilla.org/security/advisories/mfsa2026-24 url
- https://access.redhat.com/errata/RHSA-2026:5931 url
- https://access.redhat.com/errata/RHSA-2026:5932 url
…and 15 more