7.4

CVE-2026-9547

Exploit

SSH improper host validation

When a libcurl-based application performs transfers via `SCP://` or `SFTP://`
and utilizes the `CURLOPT_SSH_KEYFUNCTION` callback, it may silently accept an
untrusted server. This vulnerability occurs when a server presents a host key
type that does not match the specific key type already recorded for that host
in the `known_hosts` file. Instead of rejecting the mismatch, the callback
mechanism fails to properly enforce the restriction, allowing the connection
to succeed without warning and risking a potential man-in-the-middle attack.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Haxx ≫ Curl Version >= 7.69.0 < 8.21.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.33% 0.249
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 7.4 2.2 5.2
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://hackerone.com/reports/3751712
Third Party Advisory
Exploit
Issue Tracking
https://curl.se/docs/CVE-2026-9547.html
Patch
Vendor Advisory
https://curl.se/docs/CVE-2026-9547.json
Vendor Advisory