# CVE-2026-85197: Libsoup: libsoup: heap use-after-free in libsoup http/2 client on_data_read() via goaway during body upload CVE-2026-85197 is fixed in 10 products on 1 platform, first by gir1.2-soup-3.0 3.0.7-0ubuntu1+esm9, released September 4, 2026. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2026-85197 - Priority: High - CVSS: 7.6 (Important) - EPSS: 0.0034 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Sep 3, 2026 - Weakness: Use After Free - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85197 ## Description A flaw was found in libsoup. A malicious HTTP/2 server or a Man-in-the-Middle (MITM) attacker can exploit a heap use-after-free vulnerability in the HTTP/2 client implementation. This occurs when a GNOME application uploads a file using HTTP/2, and the server sends a GOAWAY frame while the file body is being read asynchronously. This can lead to memory corruption, potentially resulting in information disclosure or arbitrary code execution. ## 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+esm9 | [gir1.2-soup-3.0 3.0.7-0ubuntu1+esm9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-soup-3.0-3.0.7-0ubuntu1-esm9.md) | Sep 4, 2026 | | Linux | gir1.2-soup-3.0 Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.9 | [gir1.2-soup-3.0 3.4.4-5ubuntu0.9](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-soup-3.0-3.4.4-5ubuntu0.9.md) | Sep 4, 2026 | | Linux | gir1.2-soup-3.0 Ubuntu 26.04.1 LTS (resolute) | 3.6.6-1ubuntu0.1 | [gir1.2-soup-3.0 3.6.6-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gir1.2-soup-3.0-3.6.6-1ubuntu0.1.md) | Sep 4, 2026 | | Linux | libsoup opensuse-leap 16.0 | 3.6.6-160000.4.1 | [OPENSUSE-SU-2026:21901-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21901-1.md) | Sep 21, 2026 | | Linux | libsoup sles 15.6 | 3.4.4-150600.3.53.1 | [SUSE-SU-2026:4273-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4273-1.md) | Sep 21, 2026 | | Linux | libsoup sles 15.7 | 3.4.4-150600.3.53.1 | [SUSE-SU-2026:4273-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4273-1.md) | Sep 21, 2026 | | Linux | libsoup sles 16.0 | 3.6.6-160000.4.1 | [SUSE-SU-2026:23866-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23866-1.md) | Sep 21, 2026 | | Linux | libsoup-3.0-0 Ubuntu 22.04.1 LTS (jammy) | 3.0.7-0ubuntu1+esm9 | [libsoup-3.0-0 3.0.7-0ubuntu1+esm9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libsoup-3.0-0-3.0.7-0ubuntu1-esm9.md) | Sep 4, 2026 | | Linux | libsoup-3.0-0 Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.9 | [libsoup-3.0-0 3.4.4-5ubuntu0.9](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libsoup-3.0-0-3.4.4-5ubuntu0.9.md) | Sep 4, 2026 | | Linux | libsoup-3.0-0 Ubuntu 26.04.1 LTS (resolute) | 3.6.6-1ubuntu0.1 | [libsoup-3.0-0 3.6.6-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libsoup-3.0-0-3.6.6-1ubuntu0.1.md) | Sep 4, 2026 | | Linux | libsoup-3.0-common Ubuntu 22.04.1 LTS (jammy) | 3.0.7-0ubuntu1+esm9 | [libsoup-3.0-common 3.0.7-0ubuntu1+esm9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libsoup-3.0-common-3.0.7-0ubuntu1-esm9.md) | Sep 4, 2026 | | Linux | libsoup-3.0-common Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.9 | [libsoup-3.0-common 3.4.4-5ubuntu0.9](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libsoup-3.0-common-3.4.4-5ubuntu0.9.md) | Sep 4, 2026 | | Linux | libsoup-3.0-common Ubuntu 26.04.1 LTS (resolute) | 3.6.6-1ubuntu0.1 | [libsoup-3.0-common 3.6.6-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libsoup-3.0-common-3.6.6-1ubuntu0.1.md) | Sep 4, 2026 | | Linux | libsoup-3.0-tests Ubuntu 22.04.1 LTS (jammy) | 3.0.7-0ubuntu1+esm9 | [libsoup-3.0-tests 3.0.7-0ubuntu1+esm9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libsoup-3.0-tests-3.0.7-0ubuntu1-esm9.md) | Sep 4, 2026 | | Linux | libsoup-3.0-tests Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.9 | [libsoup-3.0-tests 3.4.4-5ubuntu0.9](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libsoup-3.0-tests-3.4.4-5ubuntu0.9.md) | Sep 4, 2026 | | Linux | libsoup-3.0-tests Ubuntu 26.04.1 LTS (resolute) | 3.6.6-1ubuntu0.1 | [libsoup-3.0-tests 3.6.6-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libsoup-3.0-tests-3.6.6-1ubuntu0.1.md) | Sep 4, 2026 | | Linux | libsoup3 RHEL 10 | 3.6.5-3.el10_0.18 | [RHSA-2026:82728](https://patchblox.com/security/data/fix/linux/rhsa-2026-82728.md) | Sep 17, 2026 | | Linux | libsoup3 almalinux 10 | 3.6.5-3.el10_2.14 | [ALSA-2026:68235](https://patchblox.com/security/data/fix/linux/alsa-2026-68235.md) | Sep 16, 2026 | | Linux | libsoup3 amzn 2023 | 3.7.2-1.amzn2023 | [ALAS2023-2026-3144](https://patchblox.com/security/data/fix/linux/alas2023-2026-3144.md) | Sep 28, 2026 | | Linux | libsoup3 ol 10 | 0:3.6.5-3.el10_2.14 | [ELSA-2026-68235](https://patchblox.com/security/data/fix/linux/elsa-2026-68235.md) | Sep 17, 2026 | | Linux | libsoup3-debuginfo amzn 2023 | 3.7.2-1.amzn2023 | [ALAS2023-2026-3144](https://patchblox.com/security/data/fix/linux/alas2023-2026-3144.md) | Sep 28, 2026 | | Linux | libsoup3-debugsource amzn 2023 | 3.7.2-1.amzn2023 | [ALAS2023-2026-3144](https://patchblox.com/security/data/fix/linux/alas2023-2026-3144.md) | Sep 28, 2026 | | Linux | libsoup3-devel almalinux 10 | 3.6.5-3.el10_2.14 | [ALSA-2026:68235](https://patchblox.com/security/data/fix/linux/alsa-2026-68235.md) | Sep 16, 2026 | | Linux | libsoup3-devel amzn 2023 | 3.7.2-1.amzn2023 | [ALAS2023-2026-3144](https://patchblox.com/security/data/fix/linux/alas2023-2026-3144.md) | Sep 28, 2026 | | Linux | libsoup3-devel ol 10 | 0:3.6.5-3.el10_2.14 | [ELSA-2026-68235](https://patchblox.com/security/data/fix/linux/elsa-2026-68235.md) | Sep 17, 2026 | | Linux | libsoup3-doc almalinux 10 | 3.6.5-3.el10_2.14 | [ALSA-2026:68235](https://patchblox.com/security/data/fix/linux/alsa-2026-68235.md) | Sep 16, 2026 | | Linux | libsoup3-doc amzn 2023 | 3.7.2-1.amzn2023 | [ALAS2023-2026-3144](https://patchblox.com/security/data/fix/linux/alas2023-2026-3144.md) | Sep 28, 2026 | | Linux | libsoup3-doc ol 10 | 0:3.6.5-3.el10_2.14 | [ELSA-2026-68235](https://patchblox.com/security/data/fix/linux/elsa-2026-68235.md) | Sep 17, 2026 | --- Data as of 2026-11-08T13:06:02Z UTC. 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