Description
A flaw was found in libssh. This vulnerability allows local man-in-the-middle attacks, security downgrades of SSH (Secure Shell) connections, and manipulation of trusted host information, posing a significant risk to the confidentiality, integrity, and availability of SSH communications via an insecure default configuration on Windows systems where the library automatically loads configuration files from the C:\etc directory, which can be created and modified by unprivileged local users.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Hardened Images | — | — |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| 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 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.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | libssh +2 | 0.12.0-1.1.hum1 | RHSA-2026:7067 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | libssh +1 | 0.12.0-r2 | — |
| Wolfi rolling | libssh2 | 1.11.1-r4 | — |
Advisories 4
- WID-SEC-2026-2437 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 22, 2026
- RHSA-2026:7067 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 6, 2026
- NCSC-2026-0315 Kwetsbaarheden verholpen in Oracle MySQL NCSC-NL (Netherlands) · Aug 19, 2026
- WID-SEC-2026-2903 Oracle MySQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 18, 2026
References
- RHSA-2026:7067 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2025-14821 vdb-entry
- RHBZ#2423148 issue-tracking
- https://www.libssh.org/2026/02/10/libssh-0-12-0-and-0-11-4-security-releases/