CVE-2026-111638

sshportal through 1.19.5 contains a missing authorization vulnerability in the management shell 'key show' command that allows authenticated non-admin users to obtain decrypted backend private SSH keys. Attackers can request predictable key names like 'default' or 'host' to retrieve private keys and connect directly to backend hosts, bypassing ACLs and session recording.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/moul/sshportal/blob/v1.19.5/pkg/bastion/shell.go#L1513-L1584
https://hackmd.io/@hieuPenguinnn/sshportal-key-show-privkey-disclosure
https://www.vulncheck.com/advisories/sshportal-through-1.19.5-missing-authorization-in-key-show-command-exposes-private-keys
https://hackmd.io/@hieuPenguinnn/sshportal-key-show-privkey-disclosure

Configurations

No configuration.

History

23 Oct 2026, 17:17

Type	Values Removed	Values Added
References	~~() https://hackmd.io/@hieuPenguinnn/sshportal-key-show-privkey-disclosure -~~	() https://hackmd.io/@hieuPenguinnn/sshportal-key-show-privkey-disclosure -

16 Oct 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-16 18:17

Updated : 2026-10-23 17:17

NVD link : CVE-2026-111638

Mitre link : CVE-2026-111638

CVE.ORG link : CVE-2026-111638

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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