Vulnerability Description
When doing SSH-based transfers using either SCP or SFTP, and setting the known_hosts file, libcurl could still mistakenly accept connecting to hosts *not present* in the specified file if they were added as recognized in the libssh *global* known_hosts file.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Haxx | Curl | >= 7.58.0, < 8.18.0 |
Related Weaknesses (CWE)
References
- https://curl.se/docs/CVE-2025-15079.htmlVendor AdvisoryPatch
- https://curl.se/docs/CVE-2025-15079.jsonVendor Advisory
- https://hackerone.com/reports/3477116ExploitIssue TrackingThird Party Advisory
- http://www.openwall.com/lists/oss-security/2026/01/07/6Mailing ListThird Party AdvisoryPatch
FAQ
What is CVE-2025-15079?
CVE-2025-15079 is a vulnerability with a CVSS score of 5.3 (MEDIUM). When doing SSH-based transfers using either SCP or SFTP, and setting the known_hosts file, libcurl could still mistakenly accept connecting to hosts *not present* in the specified file if they were ad...
How severe is CVE-2025-15079?
CVE-2025-15079 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-15079?
Check the references section above for vendor advisories and patch information. Affected products include: Haxx Curl.