Description
Information leak in BackgroundFetch in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
Published: 2026-11-03
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 04 Nov 2026 22:30:00 +0000

Type Values Removed Values Added
Title BackgroundFetch Information Leak Allows Cross‑Origin Data Disclosure

Wed, 04 Nov 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 03 Nov 2026 23:15:00 +0000

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

Tue, 03 Nov 2026 22:45:00 +0000

Type Values Removed Values Added
Title BackgroundFetch Information Leak Allows Cross‑Origin Data Disclosure

Tue, 03 Nov 2026 20:45:00 +0000

Type Values Removed Values Added
Description Information leak in BackgroundFetch in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-200
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-04T20:11:02.311Z

Reserved: 2026-11-03T10:13:57.806Z

Link: CVE-2026-121161

cve-icon Vulnrichment

Updated: 2026-11-04T20:07:00.599Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-11-03T21:17:23.927

Modified: 2026-11-04T20:19:09.147

Link: CVE-2026-121161

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T22:15:15Z

Weaknesses