# CVE-2026-120930: Google Chrome: Incorrect authorization

CVE-2026-120930 is fixed in 5 products on 3 platforms, first by Google Chrome Dev (EXE) 157.0.8081.0, released October 1, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-120930
- Priority: Routine
- CVSS: 5.4 (medium)
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 3, 2026
- Weakness: CWE-863: Incorrect authorization
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-120930

## Description

Incorrect authorization in Blink in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Google Chrome (EXE) | 156.0.8078.48 | [Google Chrome (EXE) 156.0.8078.48](https://patchblox.com/security/data/fix/windows-app/google.chrome.exe-156.0.8078.48.md) | Oct 20, 2026 |
| Windows apps | Google Chrome Beta (EXE) | 157.0.8103.6 | [Google Chrome Beta (EXE) 157.0.8103.6](https://patchblox.com/security/data/fix/windows-app/google.chrome.beta.exe-157.0.8103.6.md) | Oct 15, 2026 |
| Windows apps | Google Chrome Dev (EXE) | 157.0.8081.0 | [Google Chrome Dev (EXE) 157.0.8081.0](https://patchblox.com/security/data/fix/windows-app/google.chrome.dev.exe-157.0.8081.0.md) | Oct 1, 2026 |
| macOS | Google Chrome | 156.0.8078.48 | [Google Chrome 156.0.8078.48](https://patchblox.com/security/data/fix/macos/com.google.chrome-156.0.8078.48.md) | Oct 19, 2026 |
| Linux | chromium Debian 12.15 (bookworm) | 156.0.8078.47-1~deb12u1 | [DEBIAN-CVE-2026-120930](https://patchblox.com/security/data/fix/linux/debian-cve-2026-120930.md) | Nov 6, 2026 |
| Linux | chromium Debian 13.5 (trixie) | 156.0.8078.47-1~deb13u1 | [DEBIAN-CVE-2026-120930](https://patchblox.com/security/data/fix/linux/debian-cve-2026-120930.md) | Nov 6, 2026 |
| Linux | chromium Debian 14 | 156.0.8078.47-1 | [DEBIAN-CVE-2026-120930](https://patchblox.com/security/data/fix/linux/debian-cve-2026-120930.md) | Nov 6, 2026 |

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Data as of 2026-11-09T19:38:12Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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