CVE-2026-12293 (CRITICAL 9.8) · Watchpost

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CVE-2026-12293

CRITICAL 9.8CVE-2026-12293 · Published 16/06/2026 · updated 26/10/2026

Package	Affected versions	Patched versions
firefox mozilla	`< 152.0.0`	`152.0.0`
thunderbird mozilla	`< 152.0.0`	`152.0.0`

Description

Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

References

bugzilla.mozilla.org/show_bug.cgi · Permissions Required
mozilla.org/security/advisories/mfsa2026-57 · Vendor Advisory
mozilla.org/security/advisories/mfsa2026-60 · Vendor Advisory
access.redhat.com/security/cve/CVE-2026-12293
bugzilla.redhat.com/show_bug.cgi
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12293.json

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