CVE-2026-0968

LOW

Libssh: libssh: denial of service due to malformed sftp message

Title source: cna

Description

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.

References (5)

Core 5

Core References

https://www.libssh.org/2026/02/10/libssh-0-12-0-and-0-11-4-security-releases/

Vdb Entry, X_Refsource_Redhat vdb-entry x_refsource_redhat

https://access.redhat.com/security/cve/CVE-2026-0968

Issue Tracking, X_Refsource_Redhat issue-tracking x_refsource_redhat

RHBZ#2436982

https://bugzilla.redhat.com/show_bug.cgi?id=2436982

Vendor Advisory vendor-advisory x_refsource_redhat

RHSA-2026:18160

https://access.redhat.com/errata/RHSA-2026:18160

Vendor Advisory vendor-advisory x_refsource_redhat

RHSA-2026:18683

https://access.redhat.com/errata/RHSA-2026:18683

Scores

CVSS v3 3.1

EPSS 0.0044

EPSS Percentile 35.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-476

Status published

Products (12)

libssh/libssh < 0.11.3

Red Hat/Red Hat Enterprise Linux 10

Red Hat/Red Hat Enterprise Linux 10 0:0.12.0-2.el10

Red Hat/Red Hat Enterprise Linux 6

Red Hat/Red Hat Enterprise Linux 7

Red Hat/Red Hat Enterprise Linux 8

Red Hat/Red Hat Enterprise Linux 9

Red Hat/Red Hat Enterprise Linux 9 0:0.10.4-18.el9

Red Hat/Red Hat Hardened Images

Red Hat/Red Hat OpenShift Container Platform 4

... and 2 more

Published Mar 26, 2026

Tracked Since Mar 27, 2026