EUVD-2026-74489
GHSA-rp44-3jp7-v7hv
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Network-delivered via social engineering (AV:N/UI:R), no attacker privileges needed (PR:N), scope unchanged, only integrity impacted through cross-origin writes (I:H).
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
6DescriptionCVE.org
Incorrect authorization in Network in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: High)
AnalysisAI
Web origin policy bypass in Google Chrome's Network component prior to 153.0.8010.36 allows remote attackers to violate cross-origin resource isolation by socially engineering victims into interacting with a crafted Chrome extension. The Same-Origin Policy (SOP) is a foundational browser security boundary; its bypass enables unauthorized cross-origin writes (I:H), potentially allowing attackers to tamper with resources on other origins. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to install a crafted Chrome extension, which necessitates social engineering (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 6.5 (Medium) reflects network accessibility (AV:N), low complexity (AC:L), no attacker-side privileges (PR:N), but mandatory user interaction (UI:R) and unchanged scope (S:U), yielding only an integrity impact (I:H). … 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 153.0.8010.36 or later via Chrome's built-in auto-update mechanism or by downloading from the official release channel (https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html). … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-863 – Incorrect Authorization
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External POC / Exploit Code
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