CVE-2026-113056

Data leakage via PerformanceAPI discrepancy in Google Chrome

Published Oct 20, 2026 CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Description
Observable discrepancy in PerformanceAPIs in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4853-1 chromium security update
Debian DSA Debian DSA DSA-6577-1 chromium security update
History
Type Values Removed Values Added
Title Data leakage via PerformanceAPI discrepancy in Google Chrome
Type Values Removed Values Added
Title Remote code execution via PerformanceAPI memory corruption in Chrome
Type Values Removed Values Added
Weaknesses CWE-119
Type Values Removed Values Added
Description Memory corruption in PerformanceAPIs in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Low) Observable discrepancy in PerformanceAPIs in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-203
Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Remote code execution via PerformanceAPI memory corruption in Chrome
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

Type Values Removed Values Added
Description Memory corruption in PerformanceAPIs in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-119
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Nov 3, 2026, 9:21 PM
Reserved
Oct 19, 2026, 10:54 PM
Status
Modified
Published
Oct 20, 2026, 10:18 PM
Modified
Nov 3, 2026, 10:18 PM