Session Exposure in ShellHub Centralized SSH Gateway
CVE-2026-44423

6.5MEDIUM

Key Information:

Vendor

Shellhub-io

Status
Shellhub
Vendor
CVE Published:
13 May 2026

What is CVE-2026-44423?

ShellHub, a centralized SSH gateway, prior to version 0.24.2, allows any authenticated user to access the complete session object of other users without proper tenant scoping. This oversight can lead to significant privacy concerns as the exposed data includes SSH usernames, device UIDs, remote IP addresses, terminal types, authentication flags, and timestamps. Due to this vulnerability, an authenticated user might tamper with or exploit unauthorized session records, jeopardizing user security across namespaces. The issue was resolved in version 0.24.2.

Affected Version(s)

shellhub < 0.24.2

References

https://github.com/shellhub-io/shellhub/security/advisori...
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CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.