MEDIUM 6.5 Microsoft
CVE-2026-66339
Libsoup: libsoup: proxy credentials leak to destination server via proxy-authorization header in connect tunnels
Microsoft Security Update 2026-Jul: Libsoup: libsoup: proxy credentials leak to destination server via proxy-authorization header in connect tunnels
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-2026-66339
- https://nvd.nist.gov/vuln/detail/CVE-2026-66339
This medium severity vulnerability with a CVSS score of 6.5 was published on 2026-07-14 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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