EUVD-2026-74325
GHSA-wpfr-xpr4-8v88
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
AC:H captures the mandatory pre-compromised renderer prerequisite; C:L reflects limited cross-origin read impact with no integrity or availability consequence.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
5DescriptionCVE.org
Incorrect authorization in CORS in Google Chrome prior to 153.0.8010.36 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
CORS authorization bypass in Google Chrome prior to 153.0.8010.36 enables a remote attacker - who has already compromised the renderer process - to circumvent the browser's web origin policy via a crafted HTML page. The vulnerability is classified CWE-863 (Incorrect Authorization) and is confined to a post-renderer-compromise scenario, meaning it functions as a second-stage primitive rather than an initial access vector. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two mandatory prerequisites: (1) the attacker must have already compromised the Chrome renderer process via a separate, unrelated vulnerability - this is the gating condition captured in CVSS AC:H; and (2) the victim must visit an attacker-controlled HTML page (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is low-to-moderate in isolation but elevated when considered as a chaining primitive. … 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 | Upgrade Google Chrome to version 153.0.8010.36 or later, which contains the vendor-released patch per the stable channel update advisory at 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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