RCE in Google Chrome (widely used browser) allowing sandbox escape; high-impact, broadly deployed client software.
CVE-2026-103628
Chrome WebGL out-of-bounds write enabling remote code execution
Is CVE-2026-103628 being exploited?
Not confirmed. CVE-2026-103628 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-2026-103628?
CVE-2026-103628 is rated Critical with a CVSS score of 9.6. 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-2026-103628?
Yes. A fix has been recorded for CVE-2026-103628. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-103628 affect?
CVE-2026-103628 affects Google Chrome < 154.0.8037.97 (Desktop), Chromium-based browsers (potentially). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-103628?
Update Chrome to 154.0.8037.97 or later immediately; block untrusted web content.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution outside Chrome sandbox via crafted HTML/WebGL, enabling full system compromise.
Immediate action required
- affected< 154.0.8037.97
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.