RCE in Google Chrome, a ubiquitous browser; allows arbitrary code execution and impacts organizations globally.
CVE-2026-118312
Remote code execution in Chrome Paint via crafted HTML (pre-156.0.8078.73)
Is CVE-2026-118312 being exploited?
Not confirmed. CVE-2026-118312 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-2026-118312?
CVE-2026-118312 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-2026-118312?
Yes. A fix has been recorded for CVE-2026-118312. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-118312 affect?
CVE-2026-118312 affects Google Chrome < 156.0.8078.73, Chromium-based browsers (potentially). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-118312?
Update Chrome to 156.0.8078.73+ immediately; restrict untrusted 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, enabling arbitrary code execution as the local user.
Immediate action required
- affected< 156.0.8078.73
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.