CVE-2026-12009 — HIGH (8.3)

Q: How severe is CVE-2026-12009?

CVE-2026-12009 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-12009?

Check the references section above for vendor advisories and patch information. Affected products include: Google Chrome, Apple Macos.

Vulnerability Description

Insufficient validation of untrusted input in Accessibility in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

CVSS Score

8.3

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Chrome	< 149.0.7827.115
Apple	Macos	-

Related Weaknesses (CWE)

CWE-20

References

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_Vendor Advisory
https://issues.chromium.org/issues/517332006Issue TrackingPermissions Required

FAQ

What is CVE-2026-12009?

CVE-2026-12009 is a vulnerability with a CVSS score of 8.3 (HIGH). Insufficient validation of untrusted input in Accessibility in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a ...

How severe is CVE-2026-12009?

CVE-2026-12009 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-12009?

Check the references section above for vendor advisories and patch information. Affected products include: Google Chrome, Apple Macos.