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.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://curl.se/docs/CVE-2025-15079.html Patch, Vendor Advisory
- https://curl.se/docs/CVE-2025-15079.json Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/01/07/6 Mailing List, Patch, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.3 · haxxNVD modified 2026-10-14 16:10
Affected (CPE criteria) 1
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
References 4
- https://curl.se/docs/CVE-2025-15079.html Patch, Vendor Advisory
- https://curl.se/docs/CVE-2025-15079.json Vendor Advisory
- https://hackerone.com/reports/3477116 Exploit, Issue Tracking, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2026/01/07/6 Mailing List, Patch, Third Party Advisory