EUVD-2026-66017
GHSA-chx5-922j-v4jx
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
User interaction is required to visit a crafted page (UI:R); no scope change and confidentiality-only limited impact reflect partial same-origin policy bypass without write or availability consequences.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
Incorrect authorization in Browser in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Incorrect authorization in Google Chrome's browser component prior to version 152.0.7977.65 allows web origin policy bypass via a crafted HTML page. Remote unauthenticated attackers can exploit this flaw by inducing a user to visit a malicious page, resulting in limited cross-origin data reads - a breach of the same-origin policy, which is a foundational browser security boundary. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the victim actively visit a crafted HTML page in an affected Chrome browser (version prior to 152.0.7977.65), confirmed by CVSS UI:R. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 4.3 (Medium) reflects a meaningful but constrained flaw: AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a specially crafted HTML page that triggers Chrome's incorrect authorization check, causing the browser to improperly evaluate origin permissions. The attacker lures a target user to visit this page via a phishing link or a malicious ad, at which point the browser incorrectly permits cross-origin data reads that the same-origin policy should block. … |
| Remediation | Update Google Chrome to version 152.0.7977.65 or later, which contains the vendor-released patch for this issue. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-863 – Incorrect Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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