The fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison. When a client sends a Range request with a suffix length exceeding the content size, the resulting negative start value is not properly clamped, leading to malformed HTTP 206 responses and log flooding.
CVSS Details
- CVSS 3.1 Base Score: 4.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade libsoup3-debugsourceUpgrade libsoup3-debuginfoUpgrade libsoup3-develUpgrade libsoup3Upgrade libsoup3-doc | Sep 30, 2026 | Jun 22, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Apr 24, 2024 |
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