CVE-2025-15079

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 3.1

5.3CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS

0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-25)

CWE

CWE-297

Published

2026-01-08

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• haxx:curl

References

• https://curl.se/docs/CVE-2025-15079.html
• https://curl.se/docs/CVE-2025-15079.json
• https://hackerone.com/reports/3477116
• http://www.openwall.com/lists/oss-security/2026/01/07/6

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