CVE-2026-0968Libssh: libssh: denial of service due to malformed sftp message
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 10 and 3 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 3.1 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-476
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:0.12.0-2.el10 not affected | CNA record |
Red Hat Red Hat Hardened Images redhat:hummingbird | 1 | CNA record |
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift | 4 | CNA record |
libssh libssh libssh:libssh | through 0.11.3 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 9.0; 10.0 | NVD |
References
- https://access.redhat.com/errata/RHSA-2026:18160vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:18683vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-0968vdb-entry, x-refsource-redhat, third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2436982issue-tracking, x-refsource-redhat, third-party-advisory
- https://www.libssh.org/2026/02/10/libssh-0-12-0-and-0-11-4-security-releases/release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.