CVE-2026-111638 Details
Description
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.
A missing authorization vulnerability has been identified in sshportal versions through 1.19.5. This vulnerability exists in the management shell's 'key show' command, where it allows authenticated non-admin users to access decrypted private SSH keys used for backend hosts. Attackers can exploit this by requesting predictable key names such as 'default' or 'host', thereby bypassing access control lists (ACLs) and session recording features.
The vulnerability can be addressed by adding an admin role check to the 'key show' command, ensuring that only authorized users can access decrypted private key material. This adjustment should be accompanied by a regression test to verify that non-admin users cannot retrieve private keys.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 16, 2026CISA-ADP
Assessed Oct 23, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://hackmd.io/@hieuPenguinnn/sshportal-key-show-privkey-disclosure | CISA-ADP | ExploitTechnical Analysis |
| https://github.com/moul/sshportal/blob/v1.19.5/pkg/bastion/shell.go#L1513-L1584 | [email protected] | Source CodeVendor |
| https://hackmd.io/@hieuPenguinnn/sshportal-key-show-privkey-disclosure | [email protected] | ExploitTechnical Analysis |
| https://www.vulncheck.com/advisories/sshportal-through-1.19.5-missing-authorization-in-key-show-command-exposes-private-keys | [email protected] | AdvisoryBundle |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| sshportal | <= 1.19.5 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 23, 2026 | CVE Modified | CISA-ADP |
| Oct 16, 2026 | New CVE Received | [email protected] |