Chrome is a ubiquitous browser; a remote code execution bug in Extensions on macOS risks widespread compromise across enterprises and consumer systems.
CVE-2026-87637
Use-after-free in Chrome Extensions enables remote code execution on macOS.
Is CVE-2026-87637 being exploited?
Not confirmed. CVE-2026-87637 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 0.32% probability of exploitation in the next 30 days.
How severe is CVE-2026-87637?
CVE-2026-87637 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-2026-87637?
Yes. A fix has been recorded for CVE-2026-87637. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-87637 affect?
CVE-2026-87637 affects Google Chrome on macOS < 153.0.8010.36, Apple macOS (hosts running affected Chrome). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-87637?
Update Chrome on macOS to 153.0.8010.36 or later immediately
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution outside Chrome sandbox on macOS via crafted HTML; attacker can run arbitrary code as the logged-in user.
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.