CVE-2026-121134 Details
Description
Information loss in BackgroundFetch in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)
A vulnerability allowing information loss in the BackgroundFetch feature of Google Chrome has been identified. This issue affects versions of Chrome prior to 157.0.8103.38. The vulnerability allows remote attackers to bypass web origin policies by using a specially crafted HTML page.
Users can update to Google Chrome version 157.0.8103.38 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Nov 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html | [email protected] | Release NotesVendor Advisory |
| https://issues.chromium.org/issues/498000798 | [email protected] | Permissions Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-221 | Information Loss or Omission | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| google chrome | < 157.0.8103.38 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 5, 2026 | Initial Analysis | [email protected] |
| Nov 4, 2026 | CVE Modified | CISA-ADP |
| Nov 3, 2026 | New CVE Received | [email protected] |