EUVD-2026-65980
GHSA-4627-ghc4-m44x
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
S:C chosen over vendor S:U because site isolation bypass inherently crosses an origin security scope boundary; all other metrics align with vendor assessment.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
4DescriptionCVE.org
Incorrect reference resolution in Speech in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Site isolation bypass in Google Chrome's Speech component allows an attacker who has already established a foothold in the renderer process to cross origin boundaries via a crafted HTML page. Affected versions are all Chrome releases prior to 152.0.7977.65 across all platforms covered by the CPE cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two distinct prerequisites: (1) the attacker must have already achieved code execution within Chrome's renderer process via a separate, unrelated vulnerability - this is a substantial prerequisite that gates the entire attack; and (2) the victim user must interact with a crafted HTML page (UI:R per CVSS), meaning the renderer compromise itself likely also requires user navigation to attacker-controlled content. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-assigned CVSS 3.1 score of 3.1 (Low) with vector AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N correctly reflects the high attack complexity imposed by the mandatory renderer-compromise prerequisite - an attacker cannot weaponize this bug standalone. … 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 | The primary fix is to update Google Chrome to version 152.0.7977.65 or later, which is confirmed available via 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 technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today