EUVD-2026-74316
GHSA-7f58-2542-jr3x
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
AC:H reflects mandatory renderer-compromise prerequisite; C:L for limited cross-origin data leak; no integrity or availability impact.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
5DescriptionCVE.org
Confused deputy in Prerender in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Prerender's confused deputy flaw in Google Chrome prior to 153.0.8010.36 enables an attacker who has already compromised the renderer process to bypass the web Same-Origin Policy via a crafted HTML page, potentially exposing limited cross-origin data. This is a chaining vulnerability: it requires a prior renderer compromise and user interaction, not a standalone exploit path. …
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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 renderer process via a separate, unrelated vulnerability - this CVE alone does not achieve renderer compromise; (2) the victim user must interact with a crafted HTML page (UI:R) that triggers the Prerender code path. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The real-world risk of CVE-2026-87442 is substantially lower than many concurrently disclosed Chrome vulnerabilities. … 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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External POC / Exploit Code
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