CVE-2025-15079

MEDIUM

curl 7.58.0-8.17.9 - Improper Certificate Validation with Host Mismatch in SSH Transfers

Title source: llm
STIX 2.1

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.

References (4)

Core 4
Core References
Exploit, Issue Tracking, Third Party Advisory
https://hackerone.com/reports/3477116
Mailing List, Third Party Advisory, Patch
http://www.openwall.com/lists/oss-security/2026/01/07/6

Scores

CVSS v3 5.3
EPSS 0.0005
EPSS Percentile 14.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-297
Status published
Products (1)
haxx/curl 7.58.0 - 8.18.0
Published Jan 08, 2026
Tracked Since Feb 18, 2026