gir1.2-soup-2.4: A flaw was found in libsoup, an HTTP client/server library
CVE-2026-1801 is fixed in 22 products on 1 platform, first by gir1.2-soup-2.4 2.62.1-1ubuntu0.4+esm8, released February 3, 2026. It is not reported as exploited. Patch Radar priority: Routine.
A flaw was found in libsoup, an HTTP client/server library. This HTTP Request Smuggling vulnerability arises from non-RFC-compliant parsing in the soup_filter_input_stream_read_line() logic, where libsoup accepts malformed chunk headers, such as lone line feed (LF) characters instead of the required carriage return and line feed (CRLF). A remote attacker can exploit this without authentication or user interaction by sending specially crafted chunked requests. This allows libsoup to parse and process multiple HTTP requests from a single network message, potentially leading to information disclosure.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| gir1.2-soup-2.4 · Ubuntu 18.04.6 LTS (bionic) | 2.62.1-1ubuntu0.4+esm8 | gir1.2-soup-2.4 2.62.1-1ubuntu0.4+esm8 | Feb 3, 2026 |
| gir1.2-soup-2.4 · Ubuntu 20.04 LTS (focal) | 2.70.0-1ubuntu0.5+esm3 | gir1.2-soup-2.4 2.70.0-1ubuntu0.5+esm3 | Feb 3, 2026 |
| gir1.2-soup-2.4 · Ubuntu 22.04.1 LTS (jammy) | 2.74.2-3ubuntu0.8 | gir1.2-soup-2.4 2.74.2-3ubuntu0.8 | Feb 3, 2026 |
| gir1.2-soup-2.4 · Ubuntu 24.04.5 LTS (noble) | 2.74.3-6ubuntu1.8 | gir1.2-soup-2.4 2.74.3-6ubuntu1.8 | Feb 3, 2026 |
| gir1.2-soup-2.4 · Ubuntu 26.04.1 LTS (resolute) | 2.74.3-10.1ubuntu5+esm2 | gir1.2-soup-2.4 2.74.3-10.1ubuntu5+esm2 | Feb 3, 2026 |
| gir1.2-soup-3.0 · Ubuntu 22.04.1 LTS (jammy) | 3.0.7-0ubuntu1+esm8 | gir1.2-soup-3.0 3.0.7-0ubuntu1+esm8 | Feb 3, 2026 |
| gir1.2-soup-3.0 · Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.8 | gir1.2-soup-3.0 3.4.4-5ubuntu0.8 | Feb 3, 2026 |
| libsoup · amzn 2023 | 2.72.0-6.amzn2023.0.12 | ALAS2023-2026-1758 | May 25, 2026 |
| libsoup · sles 15.6 | 3.4.4-150600.3.47.1 | SUSE-SU-2026:2314-1 | Jun 9, 2026 |
| libsoup · sles 15.7 | 3.4.4-150600.3.47.1 | SUSE-SU-2026:2314-1 | Jun 9, 2026 |
| libsoup-2.4-1 · Ubuntu 24.04.5 LTS (noble) | 2.74.3-6ubuntu1.8 | libsoup-2.4-1 2.74.3-6ubuntu1.8 | Feb 3, 2026 |
| libsoup-2.4-1 · Ubuntu 26.04.1 LTS (resolute) | 2.74.3-10.1ubuntu5+esm2 | libsoup-2.4-1 2.74.3-10.1ubuntu5+esm2 | Feb 3, 2026 |
| libsoup-3.0-0 · Ubuntu 22.04.1 LTS (jammy) | 3.0.7-0ubuntu1+esm8 | libsoup-3.0-0 3.0.7-0ubuntu1+esm8 | Feb 3, 2026 |
| libsoup-3.0-0 · Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.8 | libsoup-3.0-0 3.4.4-5ubuntu0.8 | Feb 3, 2026 |
| libsoup-3.0-common · Ubuntu 22.04.1 LTS (jammy) | 3.0.7-0ubuntu1+esm8 | libsoup-3.0-common 3.0.7-0ubuntu1+esm8 | Feb 3, 2026 |
| libsoup-3.0-common · Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.8 | libsoup-3.0-common 3.4.4-5ubuntu0.8 | Feb 3, 2026 |
| libsoup-3.0-tests · Ubuntu 22.04.1 LTS (jammy) | 3.0.7-0ubuntu1+esm8 | libsoup-3.0-tests 3.0.7-0ubuntu1+esm8 | Feb 3, 2026 |
| libsoup-3.0-tests · Ubuntu 24.04.5 LTS (noble) | 3.4.4-5ubuntu0.8 | libsoup-3.0-tests 3.4.4-5ubuntu0.8 | Feb 3, 2026 |
| libsoup-debuginfo · amzn 2023 | 2.72.0-6.amzn2023.0.12 | ALAS2023-2026-1758 | May 25, 2026 |
| libsoup-debugsource · amzn 2023 | 2.72.0-6.amzn2023.0.12 | ALAS2023-2026-1758 | May 25, 2026 |
| libsoup-devel · amzn 2023 | 2.72.0-6.amzn2023.0.12 | ALAS2023-2026-1758 | May 25, 2026 |
| libsoup-doc · amzn 2023 | 2.72.0-6.amzn2023.0.12 | ALAS2023-2026-1758 | May 25, 2026 |
| libsoup-gnome-2.4-1 · Ubuntu 24.04.5 LTS (noble) | 2.74.3-6ubuntu1.8 | libsoup-gnome-2.4-1 2.74.3-6ubuntu1.8 | Feb 3, 2026 |
| libsoup-gnome-2.4-1 · Ubuntu 26.04.1 LTS (resolute) | 2.74.3-10.1ubuntu5+esm2 | libsoup-gnome-2.4-1 2.74.3-10.1ubuntu5+esm2 | Feb 3, 2026 |
| libsoup-gnome2.4-1 · Ubuntu 18.04.6 LTS (bionic) | 2.62.1-1ubuntu0.4+esm8 | libsoup-gnome2.4-1 2.62.1-1ubuntu0.4+esm8 | Feb 3, 2026 |
| libsoup-gnome2.4-1 · Ubuntu 20.04 LTS (focal) | 2.70.0-1ubuntu0.5+esm3 | libsoup-gnome2.4-1 2.70.0-1ubuntu0.5+esm3 | Feb 3, 2026 |
| libsoup-gnome2.4-1 · Ubuntu 22.04.1 LTS (jammy) | 2.74.2-3ubuntu0.8 | libsoup-gnome2.4-1 2.74.2-3ubuntu0.8 | Feb 3, 2026 |
| libsoup2 · sles 15.7 | 2.74.3-150600.4.36.1 | SUSE-SU-2026:2654-1 | Jun 26, 2026 |
| libsoup2.4-1 · Ubuntu 18.04.6 LTS (bionic) | 2.62.1-1ubuntu0.4+esm8 | libsoup2.4-1 2.62.1-1ubuntu0.4+esm8 | Feb 3, 2026 |
| libsoup2.4-1 · Ubuntu 20.04 LTS (focal) | 2.70.0-1ubuntu0.5+esm3 | libsoup2.4-1 2.70.0-1ubuntu0.5+esm3 | Feb 3, 2026 |
| libsoup2.4-1 · Ubuntu 22.04.1 LTS (jammy) | 2.74.2-3ubuntu0.8 | libsoup2.4-1 2.74.2-3ubuntu0.8 | Feb 3, 2026 |
| libsoup2.4-common · Ubuntu 22.04.1 LTS (jammy) | 2.74.2-3ubuntu0.8 | libsoup2.4-common 2.74.2-3ubuntu0.8 | Feb 3, 2026 |
| libsoup2.4-common · Ubuntu 24.04.5 LTS (noble) | 2.74.3-6ubuntu1.8 | libsoup2.4-common 2.74.3-6ubuntu1.8 | Feb 3, 2026 |
| libsoup2.4-common · Ubuntu 26.04.1 LTS (resolute) | 2.74.3-10.1ubuntu5+esm2 | libsoup2.4-common 2.74.3-10.1ubuntu5+esm2 | Feb 3, 2026 |
| libsoup2.4-tests · Ubuntu 20.04 LTS (focal) | 2.70.0-1ubuntu0.5+esm3 | libsoup2.4-tests 2.70.0-1ubuntu0.5+esm3 | Feb 3, 2026 |
| libsoup2.4-tests · Ubuntu 22.04.1 LTS (jammy) | 2.74.2-3ubuntu0.8 | libsoup2.4-tests 2.74.2-3ubuntu0.8 | Feb 3, 2026 |
| libsoup2.4-tests · Ubuntu 24.04.5 LTS (noble) | 2.74.3-6ubuntu1.8 | libsoup2.4-tests 2.74.3-6ubuntu1.8 | Feb 3, 2026 |
| libsoup2.4-tests · Ubuntu 26.04.1 LTS (resolute) | 2.74.3-10.1ubuntu5+esm2 | libsoup2.4-tests 2.74.3-10.1ubuntu5+esm2 | Feb 3, 2026 |
| libsoup3 · amzn 2023 | 3.6.6-58.amzn2023 | ALAS2023-2026-1778 | Jun 8, 2026 |
| libsoup3-debuginfo · amzn 2023 | 3.6.6-58.amzn2023 | ALAS2023-2026-1778 | Jun 8, 2026 |
| libsoup3-debugsource · amzn 2023 | 3.6.6-58.amzn2023 | ALAS2023-2026-1778 | Jun 8, 2026 |
| libsoup3-devel · amzn 2023 | 3.6.6-58.amzn2023 | ALAS2023-2026-1778 | Jun 8, 2026 |
| libsoup3-doc · amzn 2023 | 3.6.6-58.amzn2023 | ALAS2023-2026-1778 | Jun 8, 2026 |
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