CVE-2026-91734 — HIGH (7.4)

Q: How severe is CVE-2026-91734?

CVE-2026-91734 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-91734?

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

Vulnerability Description

Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)

CVSS Score

7.4

HIGH

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

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Chrome	< 153.0.8010.47
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-863

References

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_Release NotesVendor Advisory
https://issues.chromium.org/issues/516780835Permissions Required

FAQ

What is CVE-2026-91734?

CVE-2026-91734 is a vulnerability with a CVSS score of 7.4 (HIGH). Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security sev...

How severe is CVE-2026-91734?

CVE-2026-91734 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-91734?

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