Disclosure summary
Libsoup: libsoup: http request smuggling via duplicate content-length headers
Source-reported weakness categories
CWE-444
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2026-Apr
Open original source · Updated Sep 24, 2026
Libsoup: libsoup: http request smuggling via duplicate content-length headers
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 3.7
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | cbl2 libsoup 3.0.4-13 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 libsoup 3.4.4-15 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 libsoup 3.4.4-16 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 libsoup 3.0.4-13 on CBL-Mariner 2.0 | (MSRC status code 3) |
Vendor remediation references
- CBL-Mariner Releases · build 3.4.4-16 · product IDs 21202-17084, 21478-17084
- Vendor guidance · product IDs 21202-17084, 21478-17084
- Release Notes · product IDs 21115-21692
- Vendor guidance · product IDs 21115-21692
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-04-28T21:09:44-04:00
MODIFIED 2026-09-24T22:45:30-04:00
INGESTED 2026-10-08T12:40:42-04:00