high7.5
CVE-2025-5399
Due to a mistake in libcurl's WebSocket code, a malicious server can send a particularly crafted packet which makes libcurl get trapped in an endless busy-loop.
Impact
Due to a mistake in libcurl's WebSocket code, a malicious server can send a particularly crafted packet which makes libcurl get trapped in an endless busy-loop. There is no other way for the application to escape or exit this loop other than killing the thread/process. This might be used to DoS libcurl-using application.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Haxx | Curl | from 8.13.0 before 8.14.1 |