CVE-2026-91164: medium-severity vulnerability in warp-tech warpgate
Warpgate: API tokens bypass the user's allowed_ip_ranges restriction
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.3epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected products
warp-tech · warpgateRelated CVEs — warp-tech warpgate
In the same product, most dangerous first.
CVE-2023-48712HIGHUser authorization bug leading to privilege escalation in warpgateEPSS 0.7%CVE-2023-37268MEDIUMUser login confusion with SSO in warpgateEPSS 0.5%CVE-2026-63330HIGHWarpgate: Missing Admin Authorization on Live Recording Stream WebSocket Allows Any Authenticated User to Eavesdrop on Terminal SessionsEPSS 0.5%CVE-2026-58491CRITICALWarpgate: Reflected XSS in SSO return endpoint via attacker-controlled next parameterEPSS 0.5%CVE-2026-91167MEDIUMWarpgate: Missing authorization check on `PUT /users/:id/roles/:role_id` allows any admin to bypass the `AccessRolesAssign` permission boundaryEPSS 0.4%CVE-2026-91165LOWWarpgate: Markup injection in SSO form_post return page via unencoded redirect/error valuesEPSS 0.4%