Remote code execution in Google Chrome, a ubiquitous browser; exploit could mass-compromise endpoints across organizations and warrants broad IT/infosec notification.
CVE-2026-87634
Chrome WebPackaging use-after-free enables remote code execution via crafted HTML.
Is CVE-2026-87634 being exploited?
Not confirmed. CVE-2026-87634 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. EPSS currently estimates a 0.40% probability of exploitation in the next 30 days.
How severe is CVE-2026-87634?
CVE-2026-87634 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-2026-87634?
Yes. A fix has been recorded for CVE-2026-87634. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-87634 affect?
CVE-2026-87634 affects Google Chrome prior to 153.0.8010.36. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-87634?
Update Chrome to 153.0.8010.36+ immediately and enforce enterprise updates.
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, allowing arbitrary code execution on victim hosts.
Immediate action required
- affected< 153.0.8010.36
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.