# CVE-2026-113243: Chromium CVE-2026-113243: Memory corruption

CVE-2026-113243 is fixed in 9 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: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-113243
- Priority: High
- CVSS: 8.8 (Moderate)
- EPSS: 0.0037
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 20, 2026
- Weakness: Improper Restriction of Operations within the Bounds of a Memory Buffer
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-113243

## Description

<p>This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see <a href="https://chromereleases.googleblog.com/2026">Google Chrome Releases</a> for more information.</p>

## 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 |
| Windows apps | Microsoft Edge | 156.0.4314.42 | [Microsoft Edge 156.0.4314.42](https://patchblox.com/security/data/fix/windows-app/microsoft.edge-156.0.4314.42.md) | Oct 22, 2026 |
| Windows apps | Microsoft Edge Beta | 157.0.4341.10 | [Microsoft Edge Beta 157.0.4341.10](https://patchblox.com/security/data/fix/windows-app/microsoft.edge.beta-157.0.4341.10.md) | Oct 20, 2026 |
| Windows apps | Microsoft Edge Dev | 157.0.4322.0 | [Microsoft Edge Dev 157.0.4322.0](https://patchblox.com/security/data/fix/windows-app/microsoft.edge.dev-157.0.4322.0.md) | Oct 6, 2026 |
| Windows apps | Microsoft Edge WebView2 Runtime | 156.0.4314.42 | [Microsoft Edge WebView2 Runtime 156.0.4314.42](https://patchblox.com/security/data/fix/windows-app/microsoft.edgewebview2runtime-156.0.4314.42.md) | Oct 22, 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 |
| macOS | Microsoft Edge | 156.0.4314.42 | [Microsoft Edge 156.0.4314.42](https://patchblox.com/security/data/fix/macos/com.microsoft.edgemac-156.0.4314.42.md) | Oct 21, 2026 |
| Linux | chromium Debian 12.15 (bookworm) | 156.0.8078.47-1~deb12u1 | [DEBIAN-CVE-2026-113243](https://patchblox.com/security/data/fix/linux/debian-cve-2026-113243.md) | Oct 24, 2026 |
| Linux | chromium Debian 13.5 (trixie) | 156.0.8078.47-1~deb13u1 | [DEBIAN-CVE-2026-113243](https://patchblox.com/security/data/fix/linux/debian-cve-2026-113243.md) | Oct 24, 2026 |
| Linux | chromium Debian 14 | 156.0.8078.47-1 | [DEBIAN-CVE-2026-113243](https://patchblox.com/security/data/fix/linux/debian-cve-2026-113243.md) | Oct 24, 2026 |
| Linux | chromium opensuse-leap 16.0 | 156.0.8078.47-bp160.1.1 | [OPENSUSE-SU-2026:22185-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22185-1.md) | Nov 7, 2026 |

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Data as of 2026-11-08T13:06:02Z 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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