MEDIUM 5.9 Microsoft
CVE-2026-85534
Libsoup: libsoup: http/2 client crash in on_data_source_read_callback when settings initial_window_size shrinks during deferred body read
Microsoft Security Update 2026-Sep: Libsoup: libsoup: http/2 client crash in on_data_source_read_callback when settings initial_window_size shrinks during deferred body read
Affected Products
- azl3 libsoup 3.4.4-16 on Azure Linux 3.0
- azl3 libsoup 3.4.4-17 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85534
- https://nvd.nist.gov/vuln/detail/CVE-2026-85534
This medium severity vulnerability with a CVSS score of 5.9 was published on 2026-09-08 via Microsoft. Affected: azl3 libsoup 3.4.4-16 on Azure Linux 3.0, azl3 libsoup 3.4.4-17 on Azure Linux 3.0.
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