Vulnerability · Published Oct 6, 2026 · Assigned by mitre
CVE-2026-106589
Low 2.9
In plain English
A low-severity security flaw in OpenSSH from OpenBSD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 0% of all known vulnerabilities).
Severity (CVSS 3.1)2.9Low
Exploit odds (30 days)<0.1%top 99.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In sshd in OpenSSH through 10.6, in certain environments such as QNX 6 and SCO OpenServer 5, sshd-session can unexpectedly have root privileges. This is related to the GatewayPorts and StreamLocalForwarding configuration options, and lack of support for file-descriptor passing and unprivileged allocation of PTY devices.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | openssh | no fix listed | DEBIAN-CVE-2026-106589 |
| Debian:13 | openssh | no fix listed | DEBIAN-CVE-2026-106589 |
| Debian:14 | openssh | no fix listed | DEBIAN-CVE-2026-106589 |
| Ubuntu:22.04:LTS | openssh-ssh1 | no fix listed | UBUNTU-CVE-2026-106589 |
| Ubuntu:24.04:LTS | openssh-ssh1 | no fix listed | UBUNTU-CVE-2026-106589 |
| Ubuntu:26.04:LTS | openssh-ssh1 | no fix listed | UBUNTU-CVE-2026-106589 |
| Ubuntu:26.10 | openssh-ssh1 | no fix listed | UBUNTU-CVE-2026-106589 |
Affected products (as reported)
Weakness: CWE-272 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N