# CVE-2026-106271

## Summary

- **CVE ID:** CVE-2026-106271
- **Severity:** HIGH
- **CVSS Score:** 8.1 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N)
- **CWE:** CWE-862
- **Published:** Oct 6, 2026
- **Last Modified:** Oct 7, 2026

## Description

Missing authorization in Workers in Google Chrome prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted PDF file. (Chromium security severity: Medium)

## Affected Products

- Google — Chrome (155.0.8059.39)

## References

- [CNA](https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html)
- [CNA](https://issues.chromium.org/issues/553118313)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.23%
- **EPSS Percentile:** 12.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-10-11._