Description
Improper input validation in Variations in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to potentially bypass web origin policy via crafted network traffic. (Chromium security severity: Medium)
Published: 2026-08-25
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Origin Policy Bypass
Action: Update Browser
AI Analysis

Impact

Improper input validation in the Variations module of Google Chrome allows a remote attacker to send crafted network traffic that can bypass the browser’s web origin policy. The flaw permits network requests that are treated as if they come from a different origin than intended, resulting in a violation of Chrome’s same‑origin enforcement.

Affected Systems

All users running Google Chrome versions older than 152.0.7977.65 on the stable channel are affected by this vulnerability.

Risk and Exploitability

The flaw can be exploited remotely by sending malformed traffic to Chrome’s Variations service. With a CVSS score of 4.3 the vulnerability is considered medium severity. The EPSS score of < 1% indicates a low likelihood of exploitation, and the vulnerability is not listed in the CISA KEV catalog. Attackers would need to target the Variations endpoint to trigger the policy bypass.

Generated by OpenCVE AI on August 28, 2026 at 19:33 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 152.0.7977.65 or later, which includes the input validation fix.
  • If auto‑upgrade is disabled, manually download and install the latest stable release from Google’s official update site.
  • Monitor network traffic for anomalous requests to Chrome’s Variations endpoints and block suspicious patterns to reduce the risk of exploitation while the patch is being applied.

Generated by OpenCVE AI on August 28, 2026 at 19:33 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DLA Debian DLA DLA-4771-1 chromium security update
Debian DSA Debian DSA DSA-6482-1 chromium security update
History

Fri, 28 Aug 2026 20:00:00 +0000

Type Values Removed Values Added
Title Remote Origin Policy Bypass via Improper Input Validation in Chrome Variations

Fri, 28 Aug 2026 14:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

Wed, 26 Aug 2026 03:45:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Wed, 26 Aug 2026 01:15:00 +0000

Type Values Removed Values Added
Title Remote Origin Policy Bypass via Improper Input Validation in Chrome Variations

Tue, 25 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Description Improper input validation in Variations in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to potentially bypass web origin policy via crafted network traffic. (Chromium security severity: Medium)
Weaknesses CWE-20
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-08-27T19:36:35.614Z

Reserved: 2026-08-25T06:11:11.775Z

Link: CVE-2026-79192

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-08-25T21:18:12.920

Modified: 2026-08-28T14:36:21.110

Link: CVE-2026-79192

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T19:45:03Z

Weaknesses
  • CWE-20

    Improper Input Validation