CVE-2026-9547 Affecting curl package, versions <8.14.1-160000.8.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.51% (40th percentile)

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  • Snyk IDSNYK-SLES1600-CURL-17977668
  • published15 Jul 2026
  • disclosed8 Jul 2026

Introduced: 8 Jul 2026

NewCVE-2026-9547  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 curl to version 8.14.1-160000.8.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1