EUVD-2026-79982
GHSA-jfqq-qrg5-7pw6
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Remote drive-by via crafted page (AV:N/AC:L/PR:N) but victim must open it (UI:R); code exec stays inside the renderer sandbox so S:U with full C/I/A within that context.
Primary rating from Vendor (google).
CVSS VectorVendor: google
Lifecycle Timeline
4DescriptionCVE.org
Out of bounds write in ServiceWorker in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
An out-of-bounds write in Google Chrome's ServiceWorker implementation allows remote code execution inside the browser's renderer sandbox when a victim loads a crafted HTML page; exploitation requires the user to visit or be redirected to attacker-controlled content and to have a service worker exercised (UI:R, PR:N), so no credentials or pre-existing privileges are needed. Successful exploitation yields high confidentiality, integrity and availability impact within the sandboxed renderer process (CVSS 3.1 8.8, AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), and host compromise would additionally require a separate sandbox-escape. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to load attacker-controlled web content in Chrome (UI:R - user must visit or be redirected to a crafted HTML page); no authentication or pre-existing privilege is needed (PR:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority patch-now issue in one of the most widely deployed applications on earth, tempered by two important limiters that keep it below the theoretical maximum. … 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 153.0.8010.47 or later - this is the vendor-released fix documented in Google's stable channel advisory (https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html); on consumer installs the simplest path is to let the automatic background updater apply the release and to confirm the build under chrome://version on every profile and channel, then relaunch the browser so the new binary takes effect. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Vendor-released patch: 153.0.8010.47. …
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Same weakness CWE-787 – Out-of-bounds Write
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External POC / Exploit Code
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