EUVD-2026-74326
GHSA-fqrm-q7vr-pmgj
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Renderer compromise prerequisite justifies AC:H; PushAPI origin bypass yields only low confidentiality with no integrity or availability impact.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
5DescriptionCVE.org
Incorrect authorization in PushAPI 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
Incorrect authorization in Chrome's PushAPI (all versions prior to 153.0.8010.36) permits a remote attacker who has already obtained a renderer process compromise to bypass the web origin policy, potentially gaining access to push subscription data belonging to other web origins. This is a chained, secondary-stage vulnerability - it extends a renderer compromise rather than providing initial access, and its confidentiality impact is limited to PushAPI subscription metadata. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two sequential prerequisites: first, the attacker must have already compromised the Chrome renderer process through a separate, independent vulnerability; second, the victim must navigate to or load a crafted HTML page while that renderer compromise is active (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The overall risk is 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 | Vendor-released patch: Chrome 153.0.8010.36. … 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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