CVE-2026-5119MediumMicrosoft CVSS 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N

Microsoft security update for CVE-2026-5119

Published
May 31, 2026
Last Modified
—

🔗 CVE IDs covered (1)

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-5119. This page also shows what EchelonGraph holds for CVE-2026-5119, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products7

  • azl3 libsoup 3.4.4-14 on Azure Linux 3.0
  • azl3 libsoup 3.4.4-15 on Azure Linux 3.0
  • azl3 libsoup 3.4.4-16 on Azure Linux 3.0
  • azl3 libsoup 3.4.4-17 on Azure Linux 3.0
  • azl3 libsoup 3.4.4-18 on Azure Linux 3.0
  • cbl2 libsoup 3.0.4-13 on CBL Mariner 2.0
  • cbl2 libsoup 3.0.4-13 on CBL-Mariner 2.0

✅ Updates Microsoft lists: 1 update

1 row: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
—Security Update—

🧭 EchelonGraph on CVE-2026-5119

EchelonGraph score
8.2 HIGH
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

A flaw was found in libsoup. When establishing HTTPS tunnels through a configured HTTP proxy, sensitive session cookies are transmitted in cleartext within the initial HTTP CONNECT request. A network-positioned attacker or a malicious HTTP proxy can intercept these cookies, leading to potential session hijacking or user impersonation.

Published by Red Hat, Inc., the CVE Numbering Authority that assigned CVE-2026-5119, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (2)