CVE-2026-100768
published 2026-09-29CVE-2026-100768: Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
PriorityP345high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.28%
19.2th percentile
Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 157 | Firefox 157 |
| mozilla | firefox | < 157.0.0 | 157.0.0 |
| mozilla | thunderbird | < Thunderbird 157 | Thunderbird 157 |
| mozilla | thunderbird | < 157.0 | 157.0 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vendor_redhat8.8HIGH
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Red Hat
firefox: Use-after-free in the Graphics: WebGPU component
vendor_redhat·2026-09-29·CVSS 8.8
CVE-2026-100768 [HIGH] CWE-825 firefox: Use-after-free in the Graphics: WebGPU component
firefox: Use-after-free in the Graphics: WebGPU component
Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
Use-after-free in the Graphics: WebGPU component
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox (Red Hat Enterprise Linux 10) - Not affected
Package: rhel10/firefox-flatpak (Red Hat Enterprise Linux 10) - Not affected
Package: firefox (Red Hat Enterprise Linux 6) - Not affected
Package: firefox (Red Hat Enterprise Linux 7) - Not affected
Package: firefox (Red Hat Enterprise Linux 8) - Not affected
Package: firefox
Mozilla
Mozilla Foundation Security Advisory 2026-97: CVE-2026-100768
vendor_mozilla·CVSS 8.8
CVE-2026-100768 [HIGH] Mozilla Foundation Security Advisory 2026-97: CVE-2026-100768
Mozilla Foundation Security Advisory 2026-97
CVE: CVE-2026-100768
Product: Firefox
Impact: low
Fixed in: Firefox 157
Mozilla
Mozilla Foundation Security Advisory 2026-101: CVE-2026-100768
vendor_mozilla·CVSS 8.8
CVE-2026-100768 [HIGH] Mozilla Foundation Security Advisory 2026-101: CVE-2026-100768
Mozilla Foundation Security Advisory 2026-101
CVE: CVE-2026-100768
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 157
VulDB
Mozilla Firefox up to 156 WebGPU use after free (WID-SEC-2026-3654)
vuldb·2026-10-03·CVSS 8.8
CVE-2026-100768 [HIGH] Mozilla Firefox up to 156 WebGPU use after free (WID-SEC-2026-3654)
A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 156. Affected by this issue is some unknown functionality of the component WebGPU. The manipulation leads to use after free.
This vulnerability is referenced as CVE-2026-100768. Remote exploitation of the attack is possible. No exploit is available.
It is advisable to upgrade the affected component.
GHSA
Use-after-free in the Graphics: WebGPU component.
ghsa_unreviewed·2026-09-29
CVE-2026-100768 [HIGH] CWE-416 Use-after-free in the Graphics: WebGPU component.
Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 157.
No detection rules found.
No public exploits indexed.
2026-09-29
Published