Skip to content
OpenAdvisories
Low · 3.3 CVE-2026-0965 EUVD-2026-16328

Libssh: libssh: denial of service via improper configuration file handling

Published Mar 26, 2026 · Updated Nov 6, 2026 · Assigned by redhat

Vendor: Red Hat Product: Red Hat Enterprise Linux 10 Product: Red Hat Enterprise Linux 6 Product: Red Hat Enterprise Linux 7 Product: Red Hat Enterprise Linux 8 Product: Red Hat Enterprise Linux 9 Product: Red Hat Hardened Images Product: Red Hat OpenShift Container Platform 4 Package: libssh Package: libssh Package: libssh Package: libssh Platform: Linux Ecosystem: Alpine Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

A flaw was found in libssh where it can attempt to open arbitrary files during configuration parsing. A local attacker can exploit this by providing a malicious configuration file or when the system is misconfigured. This vulnerability could lead to a Denial of Service (DoS) by causing the system to try and access dangerous files, such as block devices or large system files, which can disrupt normal operations.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat Enterprise Linux 10 — —
Red Hat Red Hat Enterprise Linux 9 — —
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 Hardened Images — —
Red Hat Red Hat OpenShift Container Platform 4 — —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 libssh 0.12.0-1 —
Debian 13 libssh 0.11.5-0+deb13u1 —
Debian 12 libssh 0.10.6-0+deb12u3 —

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 25.10 libssh 0.11.2-1ubuntu0.2 USN-8051-1
Ubuntu 24.04 LTS libssh 0.10.6-2ubuntu0.3 USN-8051-1
Ubuntu 22.04 LTS libssh 0.9.6-2ubuntu0.22.04.6 USN-8051-1
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 20.04 LTS libssh 0.9.3-2ubuntu2.5+esm3 —
Ubuntu Pro 18.04 LTS libssh 0.8.0~20170825.94fa1e38-1ubuntu0.7+esm6 —
Ubuntu Pro 16.04 LTS libssh 0.6.3-4.3ubuntu0.6+esm4 —

Red Hat

Security tracker ↗
ReleasePackageFixed inAdvisory
RHEL 10 libssh +2 0.12.0-2.el10 RHSA-2026:18160
RHEL 9 libssh +2 0.10.4-18.el9 RHSA-2026:18683

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 libssh +2 0.12.0-2.el10 ALSA-2026:18160
AlmaLinux 9 libssh +2 0.10.4-18.el9 ALSA-2026:18683

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 10 libssh 0.12.0-2.el10 RLSA-2026:18160
Rocky Linux 9 libssh 0.10.4-18.el9 RLSA-2026:18683

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES 15 SP7 libssh 0.9.8-150600.11.9.1 SUSE-SU-2026:0779-1
SLES 12 SP5 libssh 0.6.3-12.28.1 SUSE-SU-2026:1344-1, SUSE-SU-2026:0778-1
Show 6 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLE Micro 6.1 libssh 0.10.6-slfo.1.1_4.1 SUSE-SU-2026:20531-1
SLE Micro 6.0 libssh 0.10.6-4.1 SUSE-SU-2026:20524-1
SLE Micro 5.5 libssh 0.9.8-150400.3.17.1 SUSE-SU-2026:1565-1
SLE Micro 5.4 libssh 0.9.8-150400.3.17.1 SUSE-SU-2026:1565-1
SLE Micro 5.3 libssh 0.9.8-150400.3.17.1 SUSE-SU-2026:1565-1
SLE Micro 5.2 libssh 0.9.8-150200.13.15.1 SUSE-SU-2026:0567-1

openSUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed libssh 0.11.4-1.1 openSUSE-SU-2026:10203-1
openSUSE Leap 15.6 libssh 0.9.8-150600.11.9.1 SUSE-SU-2026:0779-1

Alpine

Security tracker ↗
ReleasePackageFixed inAdvisory
Alpine v3.24 libssh 0.12.0-r0 —
Alpine v3.23 libssh 0.11.4-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 libssh +2 0.10.6-1.amzn2023.0.8 ALAS2023-2026-1824

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 libssh 0.10.6-7 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 10 libssh +2 0.12.0-2.el10 ELSA-2026-18160
Oracle Linux 9 libssh +2 0.10.4-18.el9 ELSA-2026-18683

Advisories 19

References