# CVE-2025-12105: libsoup3: A flaw was found in the asynchronous message queue handling of the libsoup library, widely used by GNOME and WebKit-b... CVE-2025-12105 is fixed in 10 products on 1 platform, first by RHSA-2025:23437, released October 23, 2025. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2025-12105 - Priority: High - CVSS: 7.5 (moderate) - EPSS: 0.0046 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 23, 2025 ## Description A flaw was found in the asynchronous message queue handling of the libsoup library, widely used by GNOME and WebKit-based applications to manage HTTP/2 communications. When network operations are aborted at specific timing intervals, an internal message queue item may be freed twice due to missing state synchronization. This leads to a use-after-free memory access, potentially crashing the affected application. Attackers could exploit this behavior remotely by triggering specific HTTP/2 read and cancel sequences, resulting in a denial-of-service condition. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | gir1.2-soup-3.0 Ubuntu 22.04.1 LTS (jammy) | 3.0.7-0ubuntu1+esm6 | [gir1.2-soup-3.0 3.0.7-0ubuntu1+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-soup-3.0-3.0.7-0ubuntu1-esm6.md) | Oct 23, 2025 | | Linux | gir1.2-soup-3.0 Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.6 | [gir1.2-soup-3.0 3.4.4-5ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-soup-3.0-3.4.4-5ubuntu0.6.md) | Oct 23, 2025 | | Linux | gir1.2-soup-3.0 Ubuntu 25.10 (questing) | 3.6.5-4ubuntu0.1 | [gir1.2-soup-3.0 3.6.5-4ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-gir1.2-soup-3.0-3.6.5-4ubuntu0.1.md) | Oct 23, 2025 | | Linux | libsoup opensuse-leap 15.6 | 3.4.4-150600.3.21.1 | [SUSE-SU-2026:0017-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0017-1.md) | Jan 5, 2026 | | Linux | libsoup opensuse-leap 16.0 | 3.6.6-160000.1.1 | [OPENSUSE-SU-2026:20384-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20384-1.md) | Mar 18, 2026 | | Linux | libsoup sles 15.6 | 3.4.4-150600.3.21.1 | [SUSE-SU-2026:0017-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0017-1.md) | Jan 5, 2026 | | Linux | libsoup sles 15.7 | 3.4.4-150600.3.21.1 | [SUSE-SU-2026:0017-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0017-1.md) | Jan 5, 2026 | | Linux | libsoup sles 16.0 | 3.6.6-160000.1.1 | [SUSE-SU-2026:20902-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20902-1.md) | Mar 18, 2026 | | Linux | libsoup-3.0-0 Ubuntu 22.04.1 LTS (jammy) | 3.0.7-0ubuntu1+esm6 | [libsoup-3.0-0 3.0.7-0ubuntu1+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libsoup-3.0-0-3.0.7-0ubuntu1-esm6.md) | Oct 23, 2025 | | Linux | libsoup-3.0-0 Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.6 | [libsoup-3.0-0 3.4.4-5ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libsoup-3.0-0-3.4.4-5ubuntu0.6.md) | Oct 23, 2025 | | Linux | libsoup-3.0-0 Ubuntu 25.10 (questing) | 3.6.5-4ubuntu0.1 | [libsoup-3.0-0 3.6.5-4ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libsoup-3.0-0-3.6.5-4ubuntu0.1.md) | Oct 23, 2025 | | Linux | libsoup-3.0-common Ubuntu 22.04.1 LTS (jammy) | 3.0.7-0ubuntu1+esm6 | [libsoup-3.0-common 3.0.7-0ubuntu1+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libsoup-3.0-common-3.0.7-0ubuntu1-esm6.md) | Oct 23, 2025 | | Linux | libsoup-3.0-common Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.6 | [libsoup-3.0-common 3.4.4-5ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libsoup-3.0-common-3.4.4-5ubuntu0.6.md) | Oct 23, 2025 | | Linux | libsoup-3.0-common Ubuntu 25.10 (questing) | 3.6.5-4ubuntu0.1 | [libsoup-3.0-common 3.6.5-4ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libsoup-3.0-common-3.6.5-4ubuntu0.1.md) | Oct 23, 2025 | | Linux | libsoup-3.0-tests Ubuntu 22.04.1 LTS (jammy) | 3.0.7-0ubuntu1+esm6 | [libsoup-3.0-tests 3.0.7-0ubuntu1+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libsoup-3.0-tests-3.0.7-0ubuntu1-esm6.md) | Oct 23, 2025 | | Linux | libsoup-3.0-tests Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.6 | [libsoup-3.0-tests 3.4.4-5ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libsoup-3.0-tests-3.4.4-5ubuntu0.6.md) | Oct 23, 2025 | | Linux | libsoup-3.0-tests Ubuntu 25.10 (questing) | 3.6.5-4ubuntu0.1 | [libsoup-3.0-tests 3.6.5-4ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libsoup-3.0-tests-3.6.5-4ubuntu0.1.md) | Oct 23, 2025 | | Linux | libsoup3 RHEL 10 | 3.6.5-3.el10_0.10 | [RHSA-2025:23437](https://patchblox.com/security/data/fix/linux/rhsa-2025-23437.md) | Oct 23, 2025 | | Linux | libsoup3 amzn 2023 | 3.6.5-53.amzn2023 | [ALAS2023-2025-1288](https://patchblox.com/security/data/fix/linux/alas2023-2025-1288.md) | Dec 8, 2025 | | Linux | libsoup3 ol 10 | 0:3.6.5-3.el10_1.7 | [ELSA-2025-23139](https://patchblox.com/security/data/fix/linux/elsa-2025-23139.md) | Dec 11, 2025 | | Linux | libsoup3 rocky 10 | 0:3.6.5-3.el10_1.7 | [RLSA-2025:23139](https://patchblox.com/security/data/fix/linux/rlsa-2025-23139.md) | Dec 13, 2025 | | Linux | libsoup3-debuginfo amzn 2023 | 3.6.5-53.amzn2023 | [ALAS2023-2025-1288](https://patchblox.com/security/data/fix/linux/alas2023-2025-1288.md) | Dec 8, 2025 | | Linux | libsoup3-debugsource amzn 2023 | 3.6.5-53.amzn2023 | [ALAS2023-2025-1288](https://patchblox.com/security/data/fix/linux/alas2023-2025-1288.md) | Dec 8, 2025 | | Linux | libsoup3-devel amzn 2023 | 3.6.5-53.amzn2023 | [ALAS2023-2025-1288](https://patchblox.com/security/data/fix/linux/alas2023-2025-1288.md) | Dec 8, 2025 | | Linux | libsoup3-devel ol 10 | 0:3.6.5-3.el10_1.7 | [ELSA-2025-23139](https://patchblox.com/security/data/fix/linux/elsa-2025-23139.md) | Dec 11, 2025 | | Linux | libsoup3-doc almalinux 10 | 3.6.5-3.el10_1.7 | [ALSA-2025:23139](https://patchblox.com/security/data/fix/linux/alsa-2025-23139.md) | Dec 11, 2025 | | Linux | libsoup3-doc amzn 2023 | 3.6.5-53.amzn2023 | [ALAS2023-2025-1288](https://patchblox.com/security/data/fix/linux/alas2023-2025-1288.md) | Dec 8, 2025 | | Linux | libsoup3-doc ol 10 | 0:3.6.5-3.el10_1.7 | [ELSA-2025-23139](https://patchblox.com/security/data/fix/linux/elsa-2025-23139.md) | Dec 11, 2025 | --- Data as of 2026-11-09T07:25:28Z UTC. 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