# CVE-2025-31277: gir1.2-javascriptcoregtk-4.0: The issue was addressed with improved memory handling CVE-2025-31277 is fixed in 24 products on 1 platform, first by DEBIAN-CVE-2025-31277, released July 30, 2025. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on March 20, 2026. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/cve/CVE-2025-31277 - Priority: Patch now - CVSS: 8.8 (High) - EPSS: 0.0168 - CISA KEV: listed Mar 20, 2026, federal due date Apr 3, 2026 - Exploited (vendor report): no - Publicly disclosed: no - Published: Jul 29, 2025 ## Description The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to memory corruption. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | gir1.2-javascriptcoregtk-4.0 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [gir1.2-javascriptcoregtk-4.0 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-javascriptcoregtk-4.0-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | gir1.2-javascriptcoregtk-4.1 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [gir1.2-javascriptcoregtk-4.1 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-javascriptcoregtk-4.1-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | gir1.2-javascriptcoregtk-4.1 Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | [gir1.2-javascriptcoregtk-4.1 2.50.1-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-javascriptcoregtk-4.1-2.50.1-0ubuntu0.24.04.1.md) | Nov 3, 2025 | | Linux | gir1.2-javascriptcoregtk-4.1 Ubuntu 25.10 (questing) | 2.50.0-2ubuntu1 | [gir1.2-javascriptcoregtk-4.1 2.50.0-2ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-gir1.2-javascriptcoregtk-4.1-2.50.0-2ubuntu1.md) | Sep 15, 2025 | | Linux | gir1.2-javascriptcoregtk-6.0 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [gir1.2-javascriptcoregtk-6.0 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-javascriptcoregtk-6.0-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | gir1.2-javascriptcoregtk-6.0 Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | [gir1.2-javascriptcoregtk-6.0 2.50.1-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-javascriptcoregtk-6.0-2.50.1-0ubuntu0.24.04.1.md) | Nov 3, 2025 | | Linux | gir1.2-javascriptcoregtk-6.0 Ubuntu 25.10 (questing) | 2.50.0-2ubuntu1 | [gir1.2-javascriptcoregtk-6.0 2.50.0-2ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-gir1.2-javascriptcoregtk-6.0-2.50.0-2ubuntu1.md) | Sep 15, 2025 | | Linux | gir1.2-webkit-6.0 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [gir1.2-webkit-6.0 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-webkit-6.0-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | gir1.2-webkit-6.0 Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | [gir1.2-webkit-6.0 2.50.1-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-webkit-6.0-2.50.1-0ubuntu0.24.04.1.md) | Nov 3, 2025 | | Linux | gir1.2-webkit-6.0 Ubuntu 25.10 (questing) | 2.50.0-2ubuntu1 | [gir1.2-webkit-6.0 2.50.0-2ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-gir1.2-webkit-6.0-2.50.0-2ubuntu1.md) | Sep 15, 2025 | | Linux | gir1.2-webkit2-4.0 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [gir1.2-webkit2-4.0 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-webkit2-4.0-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | gir1.2-webkit2-4.1 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [gir1.2-webkit2-4.1 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-webkit2-4.1-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | gir1.2-webkit2-4.1 Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | [gir1.2-webkit2-4.1 2.50.1-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-webkit2-4.1-2.50.1-0ubuntu0.24.04.1.md) | Nov 3, 2025 | | Linux | gir1.2-webkit2-4.1 Ubuntu 25.10 (questing) | 2.50.0-2ubuntu1 | [gir1.2-webkit2-4.1 2.50.0-2ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-gir1.2-webkit2-4.1-2.50.0-2ubuntu1.md) | Sep 15, 2025 | | Linux | libjavascriptcoregtk-4.0-18 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [libjavascriptcoregtk-4.0-18 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-4.0-18-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | libjavascriptcoregtk-4.0-bin Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [libjavascriptcoregtk-4.0-bin 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-4.0-bin-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | libjavascriptcoregtk-4.0-bin Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | [libjavascriptcoregtk-4.0-bin 2.50.1-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libjavascriptcoregtk-4.0-bin-2.50.1-0ubuntu0.24.04.1.md) | Nov 3, 2025 | | Linux | libjavascriptcoregtk-4.1-0 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [libjavascriptcoregtk-4.1-0 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-4.1-0-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | libjavascriptcoregtk-4.1-0 Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | [libjavascriptcoregtk-4.1-0 2.50.1-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libjavascriptcoregtk-4.1-0-2.50.1-0ubuntu0.24.04.1.md) | Nov 3, 2025 | | Linux | libjavascriptcoregtk-4.1-0 Ubuntu 25.10 (questing) | 2.50.0-2ubuntu1 | [libjavascriptcoregtk-4.1-0 2.50.0-2ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libjavascriptcoregtk-4.1-0-2.50.0-2ubuntu1.md) | Sep 15, 2025 | | Linux | libjavascriptcoregtk-6.0-1 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [libjavascriptcoregtk-6.0-1 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-6.0-1-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | libjavascriptcoregtk-6.0-1 Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | [libjavascriptcoregtk-6.0-1 2.50.1-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libjavascriptcoregtk-6.0-1-2.50.1-0ubuntu0.24.04.1.md) | Nov 3, 2025 | | Linux | libjavascriptcoregtk-6.0-1 Ubuntu 25.10 (questing) | 2.50.0-2ubuntu1 | [libjavascriptcoregtk-6.0-1 2.50.0-2ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libjavascriptcoregtk-6.0-1-2.50.0-2ubuntu1.md) | Sep 15, 2025 | | Linux | libjavascriptcoregtk-bin Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | [libjavascriptcoregtk-bin 2.50.1-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libjavascriptcoregtk-bin-2.50.1-0ubuntu0.24.04.1.md) | Nov 3, 2025 | | Linux | libjavascriptcoregtk-bin Ubuntu 25.10 (questing) | 2.50.0-2ubuntu1 | [libjavascriptcoregtk-bin 2.50.0-2ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libjavascriptcoregtk-bin-2.50.0-2ubuntu1.md) | Sep 15, 2025 | | Linux | libwebkit2gtk-4.0-37 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [libwebkit2gtk-4.0-37 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libwebkit2gtk-4.0-37-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | libwebkit2gtk-4.1-0 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [libwebkit2gtk-4.1-0 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libwebkit2gtk-4.1-0-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | libwebkit2gtk-4.1-0 Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | [libwebkit2gtk-4.1-0 2.50.1-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libwebkit2gtk-4.1-0-2.50.1-0ubuntu0.24.04.1.md) | Nov 3, 2025 | | Linux | libwebkit2gtk-4.1-0 Ubuntu 25.10 (questing) | 2.50.0-2ubuntu1 | [libwebkit2gtk-4.1-0 2.50.0-2ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libwebkit2gtk-4.1-0-2.50.0-2ubuntu1.md) | Sep 15, 2025 | | Linux | libwebkitgtk-6.0-4 Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [libwebkitgtk-6.0-4 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libwebkitgtk-6.0-4-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | libwebkitgtk-6.0-4 Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | [libwebkitgtk-6.0-4 2.50.1-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libwebkitgtk-6.0-4-2.50.1-0ubuntu0.24.04.1.md) | Nov 3, 2025 | | Linux | libwebkitgtk-6.0-4 Ubuntu 25.10 (questing) | 2.50.0-2ubuntu1 | [libwebkitgtk-6.0-4 2.50.0-2ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libwebkitgtk-6.0-4-2.50.0-2ubuntu1.md) | Sep 15, 2025 | | Linux | webkit2gtk Debian 12.15 (bookworm) | 2.50.1-1~deb12u1 | [DEBIAN-CVE-2025-31277](https://patchblox.com/security/data/fix/linux/debian-cve-2025-31277.md) | Jul 30, 2025 | | Linux | webkit2gtk Debian 13.5 (trixie) | 2.50.1-1~deb13u1 | [DEBIAN-CVE-2025-31277](https://patchblox.com/security/data/fix/linux/debian-cve-2025-31277.md) | Jul 30, 2025 | | Linux | webkit2gtk Debian 14 | 2.50.0-1 | [DEBIAN-CVE-2025-31277](https://patchblox.com/security/data/fix/linux/debian-cve-2025-31277.md) | Jul 30, 2025 | | Linux | webkit2gtk-driver Ubuntu 22.04.1 LTS (jammy) | 2.50.1-0ubuntu0.22.04.1 | [webkit2gtk-driver 2.50.1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-webkit2gtk-driver-2.50.1-0ubuntu0.22.04.1.md) | Nov 3, 2025 | | Linux | webkit2gtk-driver Ubuntu 24.04.5 LTS (noble) | 2.50.1-0ubuntu0.24.04.1 | [webkit2gtk-driver 2.50.1-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-webkit2gtk-driver-2.50.1-0ubuntu0.24.04.1.md) | Nov 3, 2025 | | Linux | webkit2gtk3 RHEL 8 | 0:2.50.0-1.el8_10 | [RHSA-2025:17802](https://patchblox.com/security/data/fix/linux/rhsa-2025-17802.md) | Oct 13, 2025 | | Linux | webkit2gtk3 RHEL 9 | 0:2.50.1-0.el9_6 | [RHSA-2025:18097](https://patchblox.com/security/data/fix/linux/rhsa-2025-18097.md) | Oct 15, 2025 | | Linux | webkit2gtk3 almalinux 8 | 2.50.0-1.el8_10 | [ALSA-2025:17802](https://patchblox.com/security/data/fix/linux/alsa-2025-17802.md) | Oct 13, 2025 | | Linux | webkit2gtk3 opensuse-leap 15.6 | 2.52.1-150600.12.63.1 | [SUSE-SU-2026:1364-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1364-1.md) | Apr 15, 2026 | | Linux | webkit2gtk3 opensuse-leap 16.0 | 2.52.1-160000.1.1 | [OPENSUSE-SU-2026:20518-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20518-1.md) | Apr 13, 2026 | | Linux | webkit2gtk3 sles 15.6 | 2.52.1-150600.12.63.1 | [SUSE-SU-2026:1364-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1364-1.md) | Apr 15, 2026 | | Linux | webkit2gtk3 sles 15.7 | 2.52.1-150600.12.63.1 | [SUSE-SU-2026:1364-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1364-1.md) | Apr 15, 2026 | | Linux | webkit2gtk3 sles 16.0 | 2.52.1-160000.1.1 | [SUSE-SU-2026:21180-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-21180-1.md) | Apr 13, 2026 | | Linux | webkit2gtk3-devel RHEL 8 | 0:2.50.0-1.el8_10 | [RHSA-2025:17802](https://patchblox.com/security/data/fix/linux/rhsa-2025-17802.md) | Oct 13, 2025 | | Linux | webkit2gtk3-devel RHEL 9 | 0:2.50.1-0.el9_6 | [RHSA-2025:18097](https://patchblox.com/security/data/fix/linux/rhsa-2025-18097.md) | Oct 15, 2025 | | Linux | webkit2gtk3-devel almalinux 8 | 2.50.0-1.el8_10 | [ALSA-2025:17802](https://patchblox.com/security/data/fix/linux/alsa-2025-17802.md) | Oct 13, 2025 | | Linux | webkit2gtk3-jsc RHEL 8 | 0:2.50.0-1.el8_10 | [RHSA-2025:17802](https://patchblox.com/security/data/fix/linux/rhsa-2025-17802.md) | Oct 13, 2025 | | Linux | webkit2gtk3-jsc RHEL 9 | 0:2.50.1-0.el9_6 | [RHSA-2025:18097](https://patchblox.com/security/data/fix/linux/rhsa-2025-18097.md) | Oct 15, 2025 | | Linux | webkit2gtk3-jsc almalinux 8 | 2.50.0-1.el8_10 | [ALSA-2025:17802](https://patchblox.com/security/data/fix/linux/alsa-2025-17802.md) | Oct 13, 2025 | | Linux | webkit2gtk3-jsc-devel RHEL 8 | 0:2.50.0-1.el8_10 | [RHSA-2025:17802](https://patchblox.com/security/data/fix/linux/rhsa-2025-17802.md) | Oct 13, 2025 | | Linux | webkit2gtk3-jsc-devel RHEL 9 | 0:2.50.1-0.el9_6 | [RHSA-2025:18097](https://patchblox.com/security/data/fix/linux/rhsa-2025-18097.md) | Oct 15, 2025 | | Linux | webkit2gtk3-jsc-devel almalinux 8 | 2.50.0-1.el8_10 | [ALSA-2025:17802](https://patchblox.com/security/data/fix/linux/alsa-2025-17802.md) | Oct 13, 2025 | | Linux | webkit2gtk3-soup2 opensuse-leap 15.6 | 2.52.1-150600.12.63.1 | [SUSE-SU-2026:1364-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1364-1.md) | Apr 15, 2026 | | Linux | webkit2gtk3-soup2 opensuse-leap 16.0 | 2.52.1-160000.1.1 | [OPENSUSE-SU-2026:20518-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20518-1.md) | Apr 13, 2026 | | Linux | webkit2gtk3-soup2 sles 15.6 | 2.52.1-150600.12.63.1 | [SUSE-SU-2026:1364-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1364-1.md) | Apr 15, 2026 | | Linux | webkit2gtk3-soup2 sles 15.7 | 2.52.1-150600.12.63.1 | [SUSE-SU-2026:1364-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1364-1.md) | Apr 15, 2026 | | Linux | webkit2gtk4 opensuse-leap 15.6 | 2.52.1-150600.12.63.1 | [SUSE-SU-2026:1364-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1364-1.md) | Apr 15, 2026 | | Linux | webkit2gtk4 opensuse-leap 16.0 | 2.52.1-160000.1.1 | [OPENSUSE-SU-2026:20518-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20518-1.md) | Apr 13, 2026 | | Linux | webkit2gtk4 sles 15.6 | 2.52.1-150600.12.63.1 | [SUSE-SU-2026:1364-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1364-1.md) | Apr 15, 2026 | | Linux | webkit2gtk4 sles 15.7 | 2.52.1-150600.12.63.1 | [SUSE-SU-2026:1364-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1364-1.md) | Apr 15, 2026 | | Linux | webkit2gtk4 sles 16.0 | 2.52.1-160000.1.1 | [SUSE-SU-2026:21180-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-21180-1.md) | Apr 13, 2026 | | Linux | webkitgtk-webdriver Ubuntu 25.10 (questing) | 2.50.0-2ubuntu1 | [webkitgtk-webdriver 2.50.0-2ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-webkitgtk-webdriver-2.50.0-2ubuntu1.md) | Sep 15, 2025 | | Linux | wpewebkit Debian 14 | 2.50.0-1 | [DEBIAN-CVE-2025-31277](https://patchblox.com/security/data/fix/linux/debian-cve-2025-31277.md) | Jul 30, 2025 | --- Data as of 2026-11-08T19:12:23Z UTC. 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