Is CVE-2026-5876 actively exploited?

CVE-2026-5876 has no public evidence of in-the-wild exploitation as of 2026-04-13.

What is the CVSS score for CVE-2026-5876?

CVE-2026-5876 has a CVSS score of 6.5 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

How do I patch CVE-2026-5876?

Patch guidance is available from google security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-5876.

CVE-2026-5876 - remediation guidance & executive summary

Description

Side-channel information leakage in Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-1300 CWE-1300

Metadata

Primary Vendor: GOOGLE
Published: 4/8/2026
Last Modified: 4/13/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

google : chrome

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-5876. CVEDatabase.com. Retrieved 3 May 2026. https://cvedatabase.com/cve/CVE-2026-5876

View on NIST NVD

CVE-2026-5876 vulnerability