CVE-2026-0968 LOW

CVE-2026-0968: Libssh: libssh: denial of service due to malformed sftp message

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-476
Published March 26, 2026
Last update May 19, 2026

CVSS base score

3.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A flaw was found in libssh in which a malicious SFTP (SSH File Transfer Protocol) server can exploit this by sending a malformed 'longname' field within an `SSH_FXP_NAME` message during a file listing operation. This missing null check can lead to reading beyond allocated memory on the heap. This can cause unexpected behavior or lead to a denial of service (DoS) due to application crashes.

Key dates

02Disclosure timeline

March 26, 2026 CVE published
May 19, 2026 Record updated