EUVD-2026-66031
GHSA-w2w2-qqh4-9qm8
Severity by source
Sources disagree (Medium–Critical)AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
AC raised to H because explicit renderer process compromise is a prerequisite; no integrity or availability impact described.
vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.
CVSS VectorVendor: Chrome
Lifecycle Timeline
4DescriptionCVE.org
Incorrect authorization in Extensions in Google Chrome 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 Extensions affects all desktop versions prior to 152.0.7977.65, exploitable only by an attacker who has already compromised the renderer process. The incorrect authorization flaw (CWE-863) in the Extensions subsystem allows the renderer-level attacker to cross Same-Origin Policy boundaries via a specially crafted HTML page, potentially reading data from origins the renderer should not access. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two explicit prerequisites: (1) the attacker must have already compromised the Chrome renderer process, which itself requires a separate, exploitable renderer vulnerability or an existing foothold in the renderer sandbox; and (2) the victim must navigate to or load a crafted HTML page controlled by the attacker. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The raw CVSS score of 4.3 (AV:N/AC:L/PR:N/UI:R) overstates exploitability in isolation: the NVD description explicitly requires the attacker to have already compromised the renderer process before this flaw can be reached, a prerequisite not reflected in AC:L. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update Google Chrome to version 152.0.7977.65 or later; this is confirmed as the vendor-released patch per the Chrome Stable Channel update advisory at https://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-863 – Incorrect Authorization
View allSame technique Authentication Bypass
View allVendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
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