Description

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.

INFO

Published Date :

2025-06-07T07:49:09.370Z

Last Modified :

2025-06-09T13:20:29.843Z

Source :

curl
AFFECTED PRODUCTS

The following products are affected by CVE-2025-5399 vulnerability.

Vendors Products
Curl
  • Curl
  • Libcurl
Haxx
  • Curl
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-5399.

URL Resource
http://www.openwall.com/lists/oss-security/2025/06/04/2 cve-icon
https://curl.se/docs/CVE-2025-5399.html cve-icon cve-icon cve-icon
https://curl.se/docs/CVE-2025-5399.json cve-icon cve-icon cve-icon
https://hackerone.com/reports/3168039 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-5399 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-5399 cve-icon
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CVSS Vulnerability Scoring System

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