CVSS 3.1
9.6 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HCVE-2026-121148 google chrome: Use After Free
Critical (9.6) in google chrome. EPSS 0.4% estimated probability of exploitation activity in the next 30 days.
On this page
Use after free in ANGLE in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Severity
- EPSS
- 0.4% (unchanged from 0.4% a week ago) estimated probability of exploitation activity in the next 30 days; 36th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-03. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-416 Use After Free
- Published
- Modified
- NVD analysis
- Analyzed
- Record from
- the NVD, synced
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Google Chrome | from 157.0.8103.38 before 157.0.8103.38 |
Fix and patched versions
- Red Hat, openSUSE: fixed package versions per release
- Vendor advisory: https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Debian | 12, 13, 14 | chromium | no fix listed | DEBIAN-CVE-2026-121148 |
| Red Hat | enterprise_linux:8::appstream | webkit2gtk3, webkit2gtk3-jsc, webkit2gtk3-devel and 6 more | 0:2.54.2-3.el8_10 | RHSA-2026:99702 |
| Red Hat | enterprise_linux:9::appstream | webkit2gtk3, webkit2gtk3-jsc, webkit2gtk3-devel and 6 more | 0:2.54.2-3.el9_9 | RHSA-2026:99132 |
| Red Hat | rhel_eus:9.8::appstream | webkit2gtk3, webkit2gtk3-jsc, webkit2gtk3-devel and 6 more | 0:2.54.2-0.el9_8.3 | RHSA-2026:99131 |
| openSUSE | Tumbleweed | chromium | 157.0.8103.38-1.1 | openSUSE-SU-2026:12426-1 |
From the distributions' data via OSV.dev: the Debian Security Tracker; Red Hat Security Data © Red Hat, Inc., CC BY 4.0; SUSE security data, CC BY 4.0. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian · Red Hat · openSUSE.
Red Hat
Red Hat rates this Important.
Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
--- CME Mitigation Guidance (2026-11-04) ---
Disclaimer: The following mitigation solutions are provided as a courtesy, pending the application of an official patch. This content was generated utilizing AI tools in conjunction with data from https://cmetaxonomy.org. Customers are advised to independently evaluate and test these temporary mitigations within their own infrastructure.
The highest-value action is to enforce control flow integrity to validate indirect call targets and block execution redirection from corrupted ANGLE vtables: upgrade to Chromium 157.0.8103.38 (or the fixed Chromium builds), which resolves the use-after-free condition in the ANGLE graphics engine to prevent arbitrary code execution outside the sandbox, closing crafted HTML page. Until patched, this is a concern on users navigating untrusted web content in Chromium across any platform, so restrict browser navigation to untrusted sites and prevent opening untrusted HTML documents. As a compensating measure, maintain address space layout randomization to prevent predictable gadget and payload addressing, enforce non-executable memory permissions on heap and data pages to prevent direct shellcode execution, and employ endpoint detection and response tooling to monitor for anomalous process spawning or payload activity. These controls limit blast radius and contain exploitation, but they do not fix the underlying use-after-free defect — apply the upstream patch to fully remediate.
Highest-impact CME: CME-113 Control Flow Integrity (CFI / Shadow Call Stack) (high)
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 9 | webkit2gtk3-0:2.54.2-3.el9_9 | Fixed 2026-11-11 | RHSA-2026:99132 |
| Red Hat Enterprise Linux 9.8 Extended Update Support | webkit2gtk3-0:2.54.2-0.el9_8.3 | Fixed 2026-11-12 | RHSA-2026:99131 |
| Red Hat Enterprise Linux 10 | firefox | Not affected | |
| Red Hat Enterprise Linux 10 | thunderbird | Not affected | |
| Red Hat Enterprise Linux 6 | webkitgtk | Out of support scope | |
| Red Hat Enterprise Linux 7 | firefox | Not affected | |
| Red Hat Enterprise Linux 7 | webkitgtk3 | Out of support scope | |
| Red Hat Enterprise Linux 7 | webkitgtk4 | Affected | |
| Red Hat Enterprise Linux 8 | firefox | Not affected | |
| Red Hat Enterprise Linux 8 | mozjs60 | Not affected | |
| Red Hat Enterprise Linux 8 | thunderbird | Not affected | |
| Red Hat Enterprise Linux 8 | webkit2gtk3 | Affected | |
| Red Hat Enterprise Linux 9 | firefox | Not affected | |
| Red Hat Enterprise Linux 9 | thunderbird | Not affected |
Contains Red Hat Security Data © Red Hat, Inc., licensed under CC BY 4.0. Source: https://access.redhat.com/security/data. Modified: reformatted. Red Hat's page for CVE-2026-121148.