Read the docs
TI-2023-26551 Aliases CVE-2023-48712

User authorization bug leading to privilege escalation in warpgate

Priority LOW 39CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-863.

Summary

Warpgate is an open source SSH, HTTPS and MySQL bastion host for Linux. In affected versions there is a privilege escalation vulnerability through a non-admin user's account. Limited users can impersonate another user's account if only single-factor authentication is configured. If a user knows an admin username, opens the login screen and attempts to authenticate with an incorrect password they can subsequently enter a valid non-admin username and password they will be logged in as the admin user. All installations prior to version 0.9.0 are affected. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Why it matters now

EPSS 0.00676 52nd percentileScored 2026-11-07
Fix Fixed warpgate (warp-tech): 0.9.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
warp-techwarpgatebefore 0.9.00.9.0Patch availableCNA
  • warpgate Vendorwarp-tech Affected before 0.9.0 Fixed in 0.9.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:warpgate_project:warpgate:*:*:*:*:*:*:*:*up to 0.8.1Vulnerablewarp-tech
  • cpe:2.3:a:warpgate_project:warpgate:*:*:*:*:*:*:*:* Versions up to 0.8.1 Vulnerable ·warp-tech

Remediation

  • Fix · CNA warpgate (warp-tech) Fixed in 0.9.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-48712

References

Patch 1

Advisory 1

  • TI-2023-18898 User login confusion with SSO in warpgate CVSS 3.1HIGH 8.8
  • TI-2026-30510 Russh: Pre-auth DoS via unbounded allocation in keyboard-interactive auth CVSS 3.1HIGH 7.5
  • TI-2024-29059 Russh has an OOM Denial of Service due to allocation of untrusted amount CVSS 3.1HIGH 7.5
  • TI-2026-32313 Warpgate: SSO CSRF -- State Token Not Validated on Return CVSS 3.1MEDIUM 6.5
  • TI-2025-34558 Russh is missing an overflow check during channel windows adjust CVSS 3.1MEDIUM 6.5
  • TI-2023-23385 SSH key password bypassed in warpgate CVSS 3.1HIGH 8.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences