CVE-2026-110925

openssh: openssh: '$' and '\' in a command-line username expand through %u

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Severity

Moderate

Red Hat Product Security

5.4

CVSS 3.1

Review impact separately from score.

Published · October 15, 2026

Updated · November 4, 2026

Description

A flaw was found in OpenSSH. A username entered on the ssh command line can still contain '$' or a non-trailing backslash. When a configuration expands %u inside ProxyCommand or Match exec, those characters are passed into the shell.

Statement

Status: REJECTED

Reason: Duplicate

CVE-2026-110925 has been marked as a duplicate of CVE-2026-106583.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CWE-78 · Improper Neutralization of Special Elements used in an OS Command