CVE-2026-107929
local interface connection reuse mixup
- State
- Published
- Severity
- 8.1 High
- Published
- Oct 20, 2026
- Updated
- Oct 30, 2026
- Reserved
- Oct 9, 2026
Description
When `CURLOPT_INTERFACE` (or the command line tool's `--interface` option) is set with one of the documented prefixes (`if!`, `host!`, `ifhost!`), that binding is not part of the connection reuse key, so a later transfer asking for a different source can silently reuse an existing connection and go out from the earlier transfer's source address
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-488 Exposure of Data Element to Wrong Session
Affected Products
| Product | Versions |
|---|---|
curlcurl |
|
References
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