{"id":"CVE-2026-91164","published":"2026-09-21T19:17:14.993","lastModified":"2026-09-21T20:17:39.353","description":"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.","cvssScore":4.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwes":["CWE-284","CWE-863"],"vendors":[],"products":[],"references":[{"url":"https://github.com/warp-tech/warpgate/commit/8cb33a1a7c447ab0cde3a1ee9f95bf9dde905482","tags":[]},{"url":"https://github.com/warp-tech/warpgate/pull/2356","tags":[]},{"url":"https://github.com/warp-tech/warpgate/releases/tag/v0.27.3","tags":[]},{"url":"https://github.com/warp-tech/warpgate/security/advisories/GHSA-qmr2-wp96-h9ff","tags":[]}],"exploitRefs":[{"url":"https://github.com/warp-tech/warpgate/commit/8cb33a1a7c447ab0cde3a1ee9f95bf9dde905482","tags":[]},{"url":"https://github.com/warp-tech/warpgate/pull/2356","tags":[]},{"url":"https://github.com/warp-tech/warpgate/releases/tag/v0.27.3","tags":[]},{"url":"https://github.com/warp-tech/warpgate/security/advisories/GHSA-qmr2-wp96-h9ff","tags":[]}],"hasPoc":true,"ai":{"summary":"The flaw allows an attacker to use a leaked HTTP API token from prohibited network locations, potentially gaining unauthorized access. This matters because it can lead to data breaches or system compromise.","exploitability":"Exploitation is moderate; requires a leaked or stolen X-Warpgate-Token and knowledge of the target's allowed_ip_ranges configuration.","blast_radius":"If exploited, this could result in significant data exposure or system compromise for affected deployments.","remediation":"Update to Warpgate version 0.27.3 immediately to mitigate this vulnerability.","tags":["auth-bypass","api-security","web","ssh"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-22T06:33:35.523Z"}}