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TI-2026-61913 Aliases CVE-2026-91164

Warpgate: API tokens bypass the user's allowed_ip_ranges restriction

Priority LOW 20CWE-284Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

Warpgate is an open source SSH, HTTPS and MySQL bastion host for Linux. From 0.23.0 until 0.27.3, HTTP API token authentication resolves ConfigProvider::validate_api_token into RequestAuthorization::UserToken without enforcing the owning user's allowed_ip_ranges against the trusted client address in warpgate-protocol-http/src/common.rs. An attacker holding a leaked, phished, or exfiltrated X-Warpgate-Token can therefore use it from a prohibited network location. Deployments without allowed_ip_ranges are unaffected, and HTTP target proxying plus SSH, MySQL, PostgreSQL, RDP, VNC, and Kubernetes paths do not accept this vulnerable HTTP token flow. This issue is fixed in version 0.27.3.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00421 36th percentileScored 2026-11-07
Fix Fixed warpgate (warp-tech): 0.27.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
warp-techwarpgate0.23.0 to before 0.27.30.27.3Patch availableCNA
  • warpgate Vendorwarp-tech Affected 0.23.0 to before 0.27.3 Fixed in 0.27.3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:warpgate_project:warpgate:*:*:*:*:*:*:*:*——warp-tech
  • cpe:2.3:a:warpgate_project:warpgate:*:*:*:*:*:*:*:* Versions — — ·warp-tech

Remediation

  • Fix · CNA warpgate (warp-tech) Fixed in 0.27.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-91164

References

Other 4

  • 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-2026-45163 Improper authorization in warp-tech warpgate CVSS 3.1HIGH 7.7
  • 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
See all 16 →

Sources

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