CVE-2026-13021

Same‑Origin Policy Bypass via DeviceBoundSessionCredentials in Google Chrome

Published Jun 24, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
Inappropriate implementation in DeviceBoundSessionCredentials in Google Chrome prior to 149.0.7827.197 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4654-1 chromium security update
Debian DSA Debian DSA DSA-6364-1 chromium security update
History
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Same‑Origin Policy Bypass via DeviceBoundSessionCredentials in Google Chrome
Type Values Removed Values Added
Title Same Origin Policy Bypass via DeviceBoundSessionCredentials in Chrome
Weaknesses CWE-20
CWE-613
Type Values Removed Values Added
Title Same Origin Policy Bypass via DeviceBoundSessionCredentials in Chrome
Weaknesses CWE-20
CWE-613
Type Values Removed Values Added
Weaknesses CWE-346
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'}

ssvc

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

Type Values Removed Values Added
Description Inappropriate implementation in DeviceBoundSessionCredentials in Google Chrome prior to 149.0.7827.197 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Jun 24, 2026, 7:27 PM
Reserved
Jun 23, 2026, 5:14 PM
Status
Analyzed
Published
Jun 24, 2026, 7:17 PM
Modified
Oct 25, 2026, 10:10 PM