Chrome is a ubiquitous enterprise browser; a remote RCE (even sandboxed) can lead to user compromise and widespread impact, warranting broad IT notification.
CVE-2026-121201
Use-after-free in Chrome Animation allows remote code execution in the browser sandbox
Is CVE-2026-121201 being exploited?
Not confirmed. CVE-2026-121201 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.
How severe is CVE-2026-121201?
CVE-2026-121201 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-121201?
Yes. A fix has been recorded for CVE-2026-121201. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-121201 affect?
CVE-2026-121201 affects Google Chrome < 157.0.8103.38 (desktop). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-121201?
Update Chrome to 157.0.8103.38 or later immediately
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution via crafted HTML in Chrome's Animation component; attacker can execute code inside the browser sandbox.
Immediate action required
- affected< 157.0.8103.38
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
cisa ssvc
- exploitation
- none
- automatable
- no
- technical impact
- total
Assessed by CISA 4 Nov 2026 (SSVC 2.0.3).
timeline
- 3 Nov 2026Published
- 4 Nov 2026CISA SSVC assessment: exploitation none · same day later
- 5 Nov 2026CVE record last updated · 1 day later
- 5 Nov 2026Analysed by vulneraibility.com · same day later
- Linkchromereleases.googleblog.com /2026/11/stable-channel-update-for-desktop.html
- Linkissues.chromium.org /issues/574193110
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.