# CVE-2026-87508

## Summary

- **CVE ID:** CVE-2026-87508
- **Severity:** MEDIUM
- **CVSS Score:** 4.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
- **CWE:** CWE-863
- **Published:** Sep 9, 2026
- **Last Modified:** Sep 9, 2026

## Description

Incorrect authorization in Loader in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

## Affected Products

- Google — Chrome (153.0.8010.36)

## References

- [CNA](https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html)
- [CNA](https://issues.chromium.org/issues/513346220)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.26%
- **EPSS Percentile:** 17.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-09._