Description
Observable discrepancy in PerformanceAPIs in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to potentially obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
Published: 2026-08-25
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

Sat, 29 Aug 2026 00:00:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Performance API Discrepancy in Google Chrome

Fri, 28 Aug 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'}


Wed, 26 Aug 2026 02:45:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Performance API Discrepancy in Google Chrome

Wed, 26 Aug 2026 02:30:00 +0000

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

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

Type Values Removed Values Added
Description Observable discrepancy in PerformanceAPIs in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to potentially obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-203
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-08-28T19:11:18.893Z

Reserved: 2026-08-25T06:05:02.739Z

Link: CVE-2026-78955

cve-icon Vulnrichment

Updated: 2026-08-28T19:10:40.754Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-08-25T21:17:51.520

Modified: 2026-08-28T20:19:59.887

Link: CVE-2026-78955

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T23:45:03Z

Weaknesses