CVE-2026-11278 — MEDIUM (6.5)

Q: How severe is CVE-2026-11278?

CVE-2026-11278 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-11278?

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

Vulnerability Description

Inappropriate implementation in CustomTabs in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Google	Chrome	< 149.0.7827.53
Google	Android	-

Related Weaknesses (CWE)

CWE-346

References

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.Release Notes
https://issues.chromium.org/issues/501859865Permissions Required

FAQ

What is CVE-2026-11278?

CVE-2026-11278 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Inappropriate implementation in CustomTabs in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: L...

How severe is CVE-2026-11278?

CVE-2026-11278 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-11278?

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