CVE-2026-111638

Published: Oct 16, 2026Modified: Oct 23, 2026Deferred

8.3

Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

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.

Related CWEs

CWE-862

Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

References (4)

https://github.com/moul/sshportal/blob/v1.19.5/pkg/bastion/shell.go#L1513-L1584

Source: disclosure@vulncheck.com

https://hackmd.io/@hieuPenguinnn/sshportal-key-show-privkey-disclosure

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/sshportal-through-1.19.5-missing-authorization-in-key-show-command-exposes-private-keys

Source: disclosure@vulncheck.com

https://hackmd.io/@hieuPenguinnn/sshportal-key-show-privkey-disclosure

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.