CVE-2025-15079

Summary

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.

Impact & exploitability

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://curl.se/docs/CVE-2025-15079.html ↗

Additional information

• NVD record
• https://curl.se/docs/CVE-2025-15079.htmlPatch
• http://www.openwall.com/lists/oss-security/2026/01/07/6Patch
• https://curl.se/docs/CVE-2025-15079.jsonAdvisory
• https://hackerone.com/reports/3477116Advisory