# CVE-2026-3909: Chromium: CVE-2026-3909 Out of bounds write in Skia CVE-2026-3909 is fixed in 19 products on 2 platforms, first by Google Chrome Dev (EXE) 147.0.7695.0, released February 19, 2026. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on March 13, 2026. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/cve/CVE-2026-3909 - Priority: Patch now - CVSS: 9.6 (high) - EPSS: 0.0233 - CISA KEV: listed Mar 13, 2026, federal due date Mar 27, 2026 - Exploited (vendor report): yes - Publicly disclosed: no - Published: Mar 13, 2026 - Weakness: CWE-787: Out of bounds write - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3909 ## Description

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information. Google is aware that an exploit for CVE-2026-3909 exists in the wild.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Windows apps | Google Chrome | 156.0.8078.80 | [Google Chrome 156.0.8078.80](https://patchblox.com/security/data/fix/windows-app/google.chrome-156.0.8078.80.md) | Oct 29, 2026 | | Windows apps | Google Chrome (EXE) | 146.0.7680.80 | [Google Chrome (EXE) 146.0.7680.80](https://patchblox.com/security/data/fix/windows-app/google.chrome.exe-146.0.7680.80.md) | Mar 13, 2026 | | Windows apps | Google Chrome Beta | 158.0.8127.2 | [Google Chrome Beta 158.0.8127.2](https://patchblox.com/security/data/fix/windows-app/google.chrome.beta-158.0.8127.2.md) | Oct 28, 2026 | | Windows apps | Google Chrome Beta (EXE) | 147.0.7727.3 | [Google Chrome Beta (EXE) 147.0.7727.3](https://patchblox.com/security/data/fix/windows-app/google.chrome.beta.exe-147.0.7727.3.md) | Mar 11, 2026 | | Windows apps | Google Chrome Dev | 159.0.8130.0 | [Google Chrome Dev 159.0.8130.0](https://patchblox.com/security/data/fix/windows-app/google.chrome.dev-159.0.8130.0.md) | Oct 30, 2026 | | Windows apps | Google Chrome Dev (EXE) | 147.0.7695.0 | [Google Chrome Dev (EXE) 147.0.7695.0](https://patchblox.com/security/data/fix/windows-app/google.chrome.dev.exe-147.0.7695.0.md) | Feb 19, 2026 | | Windows apps | Microsoft Edge | 146.0.3856.62 | [Microsoft Edge 146.0.3856.62](https://patchblox.com/security/data/fix/windows-app/microsoft.edge-146.0.3856.62.md) | Mar 15, 2026 | | Windows apps | Microsoft Edge Beta | 151.0.4129.59 | [Microsoft Edge Beta 151.0.4129.59](https://patchblox.com/security/data/fix/windows-app/microsoft.edge.beta-151.0.4129.59.md) | Jul 31, 2026 | | Windows apps | Microsoft Edge Dev | 152.0.4167.0 | [Microsoft Edge Dev 152.0.4167.0](https://patchblox.com/security/data/fix/windows-app/microsoft.edge.dev-152.0.4167.0.md) | Jul 20, 2026 | | Windows apps | Microsoft Edge WebView2 Runtime | 146.0.3856.62 | [Microsoft Edge WebView2 Runtime 146.0.3856.62](https://patchblox.com/security/data/fix/windows-app/microsoft.edgewebview2runtime-146.0.3856.62.md) | Mar 15, 2026 | | Linux | chromium Debian 12.15 (bookworm) | 146.0.7680.80-1~deb12u1 | [DSA-6165-1](https://patchblox.com/security/data/fix/linux/dsa-6165-1.md) | Mar 16, 2026 | | Linux | chromium Debian 13.5 (trixie) | 146.0.7680.80-1~deb13u1 | [DSA-6165-1](https://patchblox.com/security/data/fix/linux/dsa-6165-1.md) | Mar 16, 2026 | | Linux | chromium Debian 14 | 146.0.7680.80-1 | [DEBIAN-CVE-2026-3909](https://patchblox.com/security/data/fix/linux/debian-cve-2026-3909.md) | Mar 13, 2026 | | Linux | chromium opensuse-leap 16.0 | 146.0.7680.177-bp160.1.1 | [OPENSUSE-SU-2026:20460-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20460-1.md) | Aug 31, 2026 | | Linux | webkit2gtk Debian 13.5 (trixie) | 2.54.0-1~deb13u1 | [DEBIAN-CVE-2026-3909](https://patchblox.com/security/data/fix/linux/debian-cve-2026-3909.md) | Mar 13, 2026 | | Linux | webkit2gtk3 RHEL 8 | 0:2.54.0-1.el8_10 | [RHSA-2026:74084](https://patchblox.com/security/data/fix/linux/rhsa-2026-74084.md) | Jul 21, 2026 | | Linux | webkit2gtk3 RHEL 9 | 0:2.54.0-1.el9_8 | [RHSA-2026:69098](https://patchblox.com/security/data/fix/linux/rhsa-2026-69098.md) | Aug 22, 2026 | | Linux | webkit2gtk3 almalinux 8 | 2.54.0-1.el8_10 | [ALSA-2026:74084](https://patchblox.com/security/data/fix/linux/alsa-2026-74084.md) | Sep 30, 2026 | | Linux | webkit2gtk3 almalinux 9 | 2.54.0-1.el9_8 | [ALSA-2026:69098](https://patchblox.com/security/data/fix/linux/alsa-2026-69098.md) | Sep 21, 2026 | | Linux | webkit2gtk3 ol 8 | 0:2.54.0-1.el8_10 | [ELSA-2026-74084](https://patchblox.com/security/data/fix/linux/elsa-2026-74084.md) | Oct 1, 2026 | | Linux | webkit2gtk3 opensuse-leap 16.0 | 2.54.1-160000.1.1 | [OPENSUSE-SU-2026:22076-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22076-1.md) | Nov 7, 2026 | | Linux | webkit2gtk3 rocky 8 | 0:2.54.0-1.el8_10 | [RLSA-2026:74084](https://patchblox.com/security/data/fix/linux/rlsa-2026-74084.md) | Oct 1, 2026 | | Linux | webkit2gtk3 rocky 9 | 0:2.54.0-1.el9_8 | [RLSA-2026:69098](https://patchblox.com/security/data/fix/linux/rlsa-2026-69098.md) | Sep 22, 2026 | | Linux | webkit2gtk3 sles 15.6 | 2.54.1-150600.12.81.3 | [SUSE-SU-2026:4858-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4858-1.md) | Nov 7, 2026 | | Linux | webkit2gtk3 sles 15.7 | 2.54.1-150600.12.81.3 | [SUSE-SU-2026:4858-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4858-1.md) | Nov 7, 2026 | | Linux | webkit2gtk3 sles 16.0 | 2.54.1-160000.1.1 | [SUSE-SU-2026:24225-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-24225-1.md) | Nov 7, 2026 | | Linux | webkit2gtk3-devel RHEL 8 | 0:2.54.0-1.el8_10 | [RHSA-2026:74084](https://patchblox.com/security/data/fix/linux/rhsa-2026-74084.md) | Jul 21, 2026 | | Linux | webkit2gtk3-devel RHEL 9 | 0:2.54.0-1.el9_8 | [RHSA-2026:69098](https://patchblox.com/security/data/fix/linux/rhsa-2026-69098.md) | Aug 22, 2026 | | Linux | webkit2gtk3-devel almalinux 8 | 2.54.0-1.el8_10 | [ALSA-2026:74084](https://patchblox.com/security/data/fix/linux/alsa-2026-74084.md) | Sep 30, 2026 | | Linux | webkit2gtk3-devel almalinux 9 | 2.54.0-1.el9_8 | [ALSA-2026:69098](https://patchblox.com/security/data/fix/linux/alsa-2026-69098.md) | Sep 21, 2026 | | Linux | webkit2gtk3-devel ol 8 | 0:2.54.0-1.el8_10 | [ELSA-2026-74084](https://patchblox.com/security/data/fix/linux/elsa-2026-74084.md) | Oct 1, 2026 | | Linux | webkit2gtk3-jsc RHEL 8 | 0:2.54.0-1.el8_10 | [RHSA-2026:74084](https://patchblox.com/security/data/fix/linux/rhsa-2026-74084.md) | Jul 21, 2026 | | Linux | webkit2gtk3-jsc RHEL 9 | 0:2.54.0-1.el9_8 | [RHSA-2026:69098](https://patchblox.com/security/data/fix/linux/rhsa-2026-69098.md) | Aug 22, 2026 | | Linux | webkit2gtk3-jsc almalinux 8 | 2.54.0-1.el8_10 | [ALSA-2026:74084](https://patchblox.com/security/data/fix/linux/alsa-2026-74084.md) | Sep 30, 2026 | | Linux | webkit2gtk3-jsc almalinux 9 | 2.54.0-1.el9_8 | [ALSA-2026:69098](https://patchblox.com/security/data/fix/linux/alsa-2026-69098.md) | Sep 21, 2026 | | Linux | webkit2gtk3-jsc ol 8 | 0:2.54.0-1.el8_10 | [ELSA-2026-74084](https://patchblox.com/security/data/fix/linux/elsa-2026-74084.md) | Oct 1, 2026 | | Linux | webkit2gtk3-jsc-devel RHEL 8 | 0:2.54.0-1.el8_10 | [RHSA-2026:74084](https://patchblox.com/security/data/fix/linux/rhsa-2026-74084.md) | Jul 21, 2026 | | Linux | webkit2gtk3-jsc-devel RHEL 9 | 0:2.54.0-1.el9_8 | [RHSA-2026:69098](https://patchblox.com/security/data/fix/linux/rhsa-2026-69098.md) | Aug 22, 2026 | | Linux | webkit2gtk3-jsc-devel almalinux 8 | 2.54.0-1.el8_10 | [ALSA-2026:74084](https://patchblox.com/security/data/fix/linux/alsa-2026-74084.md) | Sep 30, 2026 | | Linux | webkit2gtk3-jsc-devel almalinux 9 | 2.54.0-1.el9_8 | [ALSA-2026:69098](https://patchblox.com/security/data/fix/linux/alsa-2026-69098.md) | Sep 21, 2026 | | Linux | webkit2gtk3-jsc-devel ol 8 | 0:2.54.0-1.el8_10 | [ELSA-2026-74084](https://patchblox.com/security/data/fix/linux/elsa-2026-74084.md) | Oct 1, 2026 | | Linux | webkit2gtk3-soup2 opensuse-leap 16.0 | 2.54.1-160000.1.1 | [OPENSUSE-SU-2026:22076-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22076-1.md) | Nov 7, 2026 | | Linux | webkit2gtk3-soup2 sles 15.6 | 2.54.1-150600.12.81.4 | [SUSE-SU-2026:4858-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4858-1.md) | Nov 7, 2026 | | Linux | webkit2gtk3-soup2 sles 15.7 | 2.54.1-150600.12.81.4 | [SUSE-SU-2026:4858-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4858-1.md) | Nov 7, 2026 | | Linux | webkit2gtk4 opensuse-leap 16.0 | 2.54.1-160000.1.1 | [OPENSUSE-SU-2026:22076-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22076-1.md) | Nov 7, 2026 | | Linux | webkit2gtk4 sles 15.6 | 2.54.1-150600.12.81.4 | [SUSE-SU-2026:4858-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4858-1.md) | Nov 7, 2026 | | Linux | webkit2gtk4 sles 15.7 | 2.54.1-150600.12.81.4 | [SUSE-SU-2026:4858-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4858-1.md) | Nov 7, 2026 | | Linux | webkit2gtk4 sles 16.0 | 2.54.1-160000.1.1 | [SUSE-SU-2026:24225-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-24225-1.md) | Nov 7, 2026 | | Linux | wpewebkit Debian 14 | 2.54.0-1 | [DEBIAN-CVE-2026-3909](https://patchblox.com/security/data/fix/linux/debian-cve-2026-3909.md) | Mar 13, 2026 | --- Data as of 2026-11-08T00:53:09Z UTC. 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