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Microsoft Security Response CenterCVE-2026-85534

Libsoup: libsoup: http/2 client crash in on_data_source_read_callback when settings initial_window_size shrinks during deferred body read

Mariner

Read the vendor bulletin Get alerts for azl3 libsoup 3.4.4-16 on Azure Linux
5.9CVSS out of 10Medium severity
Scope

What the vendor says is affected

  • azl3 libsoup 3.4.4-16 on Azure Linux 3.0
Next step

What the vendor recommends

See the Microsoft Security Update Guide for the update that applies to your product.

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-85534View CVSS, KEV, EPSS, and threat context
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