CVE-2026-14003 — MEDIUM (4.3)

Q: How severe is CVE-2026-14003?

CVE-2026-14003 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-14003?

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

Vulnerability Description

Insufficient policy enforcement in Extensions in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Medium)

CVSS Score

4.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Google	Chrome	< 150.0.7871.47

Related Weaknesses (CWE)

CWE-284

References

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_Release Notes
https://issues.chromium.org/issues/514503077Permissions Required

FAQ

What is CVE-2026-14003?

CVE-2026-14003 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Insufficient policy enforcement in Extensions in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted ...

How severe is CVE-2026-14003?

CVE-2026-14003 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-14003?

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