EUVD-2026-74386
GHSA-8jm7-f523-4jxc
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Renderer process compromise prerequisite justifies AC:H; C:H reflects meaningful sensitive data accessible via ServiceWorker API; no integrity or availability impact applies.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
4DescriptionCVE.org
Information leak in ServiceWorker in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to obtain sensitive information via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
ServiceWorker information leak in Google Chrome prior to 153.0.8010.36 enables a remote attacker who has already compromised the renderer process to extract sensitive information via a crafted HTML page. This is a chained exploitation technique rather than a standalone attack - requiring prior renderer process control as a hard prerequisite, making it a second-stage capability within a broader browser exploit chain. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation has a hard prerequisite: the attacker must have already compromised the Chrome renderer process via a separate, independent vulnerability - this CVE cannot be exploited standalone. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 5.3 (Medium) with vector AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N accurately captures the constrained exploitation profile: while C:H reflects meaningful confidentiality impact when successful, AC:H and the explicitly stated renderer-compromise prerequisite mean this cannot be triggered in isolation. … 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, as confirmed by the Chrome stable channel 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-200 – Information Exposure
View allSame technique Information Disclosure
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External POC / Exploit Code
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