CVE-2026-110929

openssh: openssh: post-authentication process retains root without file-descriptor passing

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Severity

Important

Red Hat Product Security

8.1

CVSS 3.1

Review impact separately from score.

Published · October 15, 2026

Updated · October 20, 2026

Description

A flaw was found in OpenSSH. On platforms that cannot pass file descriptors and that need root to allocate a terminal, the post-authentication session process keeps root privilege. An authenticated user can then perform actions as root, including privileged socket connections and binding forwards to low-numbered ports.

Statement

Status: REJECTED

Reason: Duplicate

CVE-2026-110929 has been marked as a duplicate of CVE-2026-106589.

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 · 8.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CWE-250 · Execution with Unnecessary Privileges