Microsoft security update for CVE-2026-2443
🔗 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-2026-2443. This page also shows what EchelonGraph holds for CVE-2026-2443, 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 3.4.4-11 on Azure Linux 3.0
- azl3 libsoup 3.4.4-12 on Azure Linux 3.0
- azl3 libsoup 3.4.4-14 on Azure Linux 3.0
- cbl2 libsoup 3.0.4-10 on CBL Mariner 2.0
- cbl2 libsoup 3.0.4-12 on CBL Mariner 2.0
- 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: 3 updates
3 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | 3.4.4-14 |
| — | Security Update | 3.0.4-14 |
| — | Security Update | 3.4.4-13 |
🧭 EchelonGraph on CVE-2026-2443
- EchelonGraph score
- 5.3 MEDIUM
- 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 identified in libsoup, a widely used HTTP library in GNOME-based systems. When processing specially crafted HTTP Range headers, the library may improperly validate requested byte ranges. In certain build configurations, this could allow a remote attacker to access portions of server memory beyond the intended response. Exploitation requires a vulnerable configuration and access to a server using the embedded SoupServer component.
Published by Red Hat, Inc., the CVE Numbering Authority that assigned CVE-2026-2443, 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).