EUVD-2026-74535
GHSA-vq9g-7664-c37x
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Renderer compromise prerequisite justifies AC:H; information-disclosure-only outcome sets C:H, I:N, A:N; no scope change (S:U).
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
4DescriptionCVE.org
Confused deputy in BackgroundFetch in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to leak sensitive information via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Sensitive information disclosure in Google Chrome's BackgroundFetch API allows a remote attacker who has already compromised the renderer process to leverage the BackgroundFetch service worker mechanism as a confused deputy, leaking sensitive data via a crafted HTML page. Affected versions are all Chrome releases prior to 153.0.8010.36; Chromium rates this Medium, consistent with the CVSS 5.3 score that reflects the high-complexity prerequisite of a compromised renderer. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two concurrent conditions: (1) the attacker must have already compromised the Chrome renderer process - for example, via a separate memory corruption or logic-error vulnerability in the renderer - and (2) the victim user must visit or have visited a crafted HTML page under the attacker's control (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Multiple signals converge on a genuine but limited real-world risk. … 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 via the browser's built-in auto-update mechanism or by downloading from the official Chrome release channel. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same technique Information Disclosure
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External POC / Exploit Code
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