EUVD-2026-66044
GHSA-h9w7-jx5h-jccp
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
AC elevated to H because exploitation requires a pre-compromised renderer process as a mandatory prerequisite, substantially increasing real-world attack complexity beyond AC:L.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Lifecycle Timeline
4DescriptionCVE.org
Improper input validation in ReadingList in Google Chrome on on Windows prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)
AnalysisAI
Web origin policy bypass in Google Chrome's ReadingList component on Windows enables a renderer-compromised attacker to cross origin boundaries via a crafted HTML page. Affected are all Chrome for Windows versions prior to 152.0.7977.65. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two distinct conditions to be met simultaneously. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is significantly lower than the raw CVSS 6.5 suggests. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker first exploits a separate Chrome renderer vulnerability (not this CVE) to gain code execution inside the sandboxed renderer process. From that compromised renderer, the attacker delivers a crafted HTML page that triggers the improper input validation flaw in ReadingList, causing the browser process to misattribute origin ownership and allow cross-origin resource access or modification. … |
| Remediation | Upgrade Google Chrome for Windows to version 152.0.7977.65 or later, which contains the vendor-released patch per the Chrome Stable Channel Update advisory at http://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-20 – Improper Input Validation
View allSame technique Authentication Bypass
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External POC / Exploit Code
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