Disclosure summary
HTTP client proxy tunnel headers not validated for CR/LF
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 Jun 02, 2026
HTTP client proxy tunnel headers not validated for CR/LF
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | cbl2 python3 3.9.19-19 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 python3 3.12.9-11 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 python3 3.12.9-10 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- CBL-Mariner Releases · build 3.12.9-11 · product IDs 21379-17084, 21100-17084
- Vendor guidance · product IDs 21379-17084, 21100-17084
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-04-14T21:04:59-04:00
MODIFIED 2026-06-02T21:39:41-04:00
INGESTED 2026-10-08T12:40:41-04:00