CVE-2026-13889 — MEDIUM (6.5)

Q: How severe is CVE-2026-13889?

CVE-2026-13889 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-2026-13889?

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

Vulnerability Description

Side-channel information leakage in WebAuthentication in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

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	< 150.0.7871.47
Apple	Iphone Os	-

Related Weaknesses (CWE)

CWE-20

References

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_Vendor Advisory
https://issues.chromium.org/issues/500588580Issue TrackingPermissions Required

FAQ

What is CVE-2026-13889?

CVE-2026-13889 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Side-channel information leakage in WebAuthentication in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security sev...

How severe is CVE-2026-13889?

CVE-2026-13889 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-2026-13889?

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