{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63329", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-16T14:14:24.384Z", "datePublished": "2026-09-21T18:49:01.603Z", "dateUpdated": "2026-09-21T18:49:01.603Z"}, "containers": {"cna": {"title": "Warpgate: x-warpgate-username Header Not Stripped from Client Requests Enables Identity Spoofing to WebSocket Backend Targets", "problemTypes": [{"descriptions": [{"cweId": "CWE-116", "lang": "en", "description": "CWE-116: Improper Encoding or Escaping of Output", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-290", "lang": "en", "description": "CWE-290: Authentication Bypass by Spoofing", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/warp-tech/warpgate/security/advisories/GHSA-862h-v6cc-9757", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/warp-tech/warpgate/security/advisories/GHSA-862h-v6cc-9757"}, {"name": "https://github.com/warp-tech/warpgate/commit/c3748d7585209781b2d3a39ac9941b91d11d9b77", "tags": ["x_refsource_MISC"], "url": "https://github.com/warp-tech/warpgate/commit/c3748d7585209781b2d3a39ac9941b91d11d9b77"}, {"name": "https://github.com/warp-tech/warpgate/releases/tag/v0.25.6", "tags": ["x_refsource_MISC"], "url": "https://github.com/warp-tech/warpgate/releases/tag/v0.25.6"}], "affected": [{"vendor": "warp-tech", "product": "warpgate", "versions": [{"version": "< 0.25.6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-21T18:49:01.603Z"}, "descriptions": [{"lang": "en", "value": "Warpgate is an open source SSH, HTTPS and MySQL bastion host for Linux. Prior to 0.25.6, copy_server_request in warpgate-protocol-http/src/proxy.rs forwards a client-supplied x-warpgate-username header before inject_own_headers appends the authenticated username. Because the request builder preserves repeated values, a proxied backend that trusts the first x-warpgate-username value can authorize an authenticated attacker as another user. The same forwarding policy also accepts the reserved x-warpgate-authentication-type header, and warpgate-common/src/http_headers.rs does not exclude either reserved identity header. This issue is fixed in version 0.25.6."}], "source": {"advisory": "GHSA-862h-v6cc-9757", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "warpgate", "vendor": "warp-tech", "versions": [{"status": "affected", "version": "< 0.25.6"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Warpgate is an open source SSH, HTTPS and MySQL bastion host for Linux. Prior to 0.25.6, copy_server_request in warpgate-protocol-http/src/proxy.rs forwards a client-supplied x-warpgate-username header before inject_own_headers appends the authenticated username. Because the request builder preserves repeated values, a proxied backend that trusts the first x-warpgate-username value can authorize an authenticated attacker as another user. The same forwarding policy also accepts the reserved x-warpgate-authentication-type header, and warpgate-common/src/http_headers.rs does not exclude either reserved identity header. This issue is fixed in version 0.25.6."}], "id": "CVE-2026-63329", "lastModified": "2026-09-21T19:17:08.290", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-21T19:17:08.290", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/warp-tech/warpgate/commit/c3748d7585209781b2d3a39ac9941b91d11d9b77"}, {"source": "security-advisories@github.com", "url": "https://github.com/warp-tech/warpgate/releases/tag/v0.25.6"}, {"source": "security-advisories@github.com", "url": "https://github.com/warp-tech/warpgate/security/advisories/GHSA-862h-v6cc-9757"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-116"}, {"lang": "en", "value": "CWE-290"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.25.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "warpgate", "source": "cna", "vendor": "warp-tech"}, "product": "warpgate", "vendor": "warp-tech"}], "created": "2026-09-21T20:30:18.025966+00:00", "updated": "2026-09-21T20:30:18.025985+00:00", "vendors": ["warp-tech", "warp-tech$PRODUCT$warpgate"]}