EUVD-2026-65864
GHSA-h764-h39h-gr9v
Severity by source
Sources disagree (Medium–Critical)AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
AC:H reflects the mandatory prerequisite of prior renderer process compromise; remaining metrics align with the official vector and description.
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
Improper input validation in Network 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: Medium)
AnalysisAI
Web origin policy bypass in Google Chrome's Network component (all versions prior to 152.0.7977.65) permits a remote attacker who has already compromised the renderer process to circumvent same-origin policy enforcement via a crafted HTML page, yielding limited cross-origin data disclosure. The flaw arises from improper input validation (CWE-20) in the network stack and functions as a second-stage amplifier within an exploit chain rather than a standalone initial-access vector. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two sequential hard prerequisites: first, the attacker must have already achieved compromise of the victim's Chrome renderer process via a separate, unrelated vulnerability (a sandbox escape or renderer RCE); second, the victim must actively visit or be redirected to a crafted HTML page under attacker control (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The official CVSS 3.1 score of 4.3 (Medium) with vector AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N correctly captures the bounded confidentiality-only impact and required user interaction, but AC:L understates the realistic attack difficulty: the description explicitly requires a prior renderer compromise, a significant prerequisite that raises the practical complexity well above 'Low'. … 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, which contains the vendor-released patch per the Chrome Stable Channel 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-20 – Improper Input Validation
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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