CVE-2026-106589

Status: Awaiting AnalysisLow (2.9)—

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.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Base score: 2.9

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.08%
Percentile among all scored CVEs: 0
Score date: 10/7/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Primary impactT1548 Abuse Elevation Control Mechanismprivilege escalation75 %

Vulnerabilidad local (AV:L) sin interacción (UI:N) que permite a sshd-session obtener privilegios root inesperadamente en entornos específicos (QNX 6, SCO OpenServer 5) mediante configuración de GatewayPorts y StreamLocalForwarding.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Execution Prevention Update Software User Account Management Threat Intelligence Program Restrict File and Directory Permissions Privileged Account Management

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Openbsd — Openssh^AI

CWEs

CWE-272

References

https://www.openssh.org/releasenotes.html#10.6

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-106589",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
            {
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              "automatable": "no"
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            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-10-07T15:42:26.762471Z"
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          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 1.4
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  "affected": [
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      "affectedData": [
        {
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  "published": "2026-10-06T22:17:06.920",
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  "lastModified": "2026-10-07T16:17:44.730",
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}