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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade libsoup3-debugsourceUpgrade libsoup3-debuginfoUpgrade libsoup3-develUpgrade libsoup3Upgrade libsoup3-doc | Sep 30, 2026 | Sep 4, 2026 |
| Redhat_linux | — | Upgrade libsoup3-develUpgrade libsoup3-debuginfoUpgrade libsoup3Upgrade libsoup3-debugsourceUpgrade libsoup3-doc | Sep 18, 2026 | Sep 3, 2026 |
| Ubuntu | — | Upgrade gir1.2-soup-3.0 (Ubuntu Pro)Upgrade libsoup2.4-devUpgrade gir1.2-soup-3.0Upgrade libsoup2.4-1Upgrade libsoup-3.0-commonUpgrade libsoup2.4-commonUpgrade libsoup-2.4-1 (Ubuntu Pro)Upgrade gir1.2-soup-2.4 (Ubuntu Pro)Upgrade libsoup-3.0-0Upgrade libsoup-3.0-dev (Ubuntu Pro)Upgrade libsoup-2.4-1Upgrade libsoup-gnome-2.4-1 (Ubuntu Pro)Upgrade libsoup-gnome2.4-1Upgrade gir1.2-soup-2.4Upgrade libsoup-gnome2.4-devUpgrade libsoup-3.0-common (Ubuntu Pro)Upgrade libsoup-3.0-0 (Ubuntu Pro)Upgrade libsoup2.4-dev (Ubuntu Pro)Upgrade libsoup-gnome2.4-1 (Ubuntu Pro)Upgrade libsoup-gnome-2.4-1Upgrade libsoup2.4-1 (Ubuntu Pro)Upgrade libsoup-gnome2.4-dev (Ubuntu Pro)Upgrade libsoup-3.0-devUpgrade libsoup2.4-common (Ubuntu Pro) | Oct 7, 2026 | Oct 6, 2026 |
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