EUVD-2026-74533
GHSA-ppjc-9g4v-cv37
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
AC:H captures mandatory renderer pre-compromise; C:L reflects limited cross-origin data read; no integrity or availability impact applies.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
5DescriptionCVE.org
Missing 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 allows an attacker who has already achieved renderer process compromise to circumvent the browser's same-origin policy and read limited cross-origin response data. The flaw (CWE-862, Missing Authorization) is a chaining primitive: it requires both user interaction via a crafted HTML page and a pre-existing renderer exploit, making it a second-stage capability rather than an independent entry point. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two independent conditions to be satisfied simultaneously: first, the attacker must have already achieved compromise of the Chrome renderer process through a separate, unrelated vulnerability (this is a hard prerequisite, not just a configuration setting); second, the target user must interact with a crafted HTML page (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is low despite network-reachability. … 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 the Chrome stable channel; this is the vendor-released patch as confirmed by the Chrome Releases 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-862 – Missing Authorization
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External POC / Exploit Code
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