{"id":"CVE-2026-44426","summary":"ShellHub: Cross-tenant IDOR in `GET /api/namespaces/:tenant` via API Key bypasses  membership check","details":"ShellHub is a centralized SSH gateway. Prior to 0.24.2, GET /api/namespaces/:tenant returns the full namespace object — including\nthe members list (user IDs, e-mails, roles), settings, and device counts — to any caller authenticated by an API Key, for any tenant, regardless of the API Key's own tenant scope. The handler conditionally skips the membership check when the user ID (X-ID) is absent, which is exactly the case for API Key authentication. This vulnerability is fixed in 0.24.2.","aliases":["GHSA-vwx9-7qcf-gg7f","GO-2026-5680"],"modified":"2026-07-08T08:13:27.459076726Z","published":"2026-05-13T21:06:06.222Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-639"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44426.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44426.json"},{"type":"ADVISORY","url":"https://github.com/shellhub-io/shellhub/security/advisories/GHSA-vwx9-7qcf-gg7f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44426"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/shellhub-io/shellhub","events":[{"introduced":"0"},{"fixed":"2e5002fff1b1ef5f6c86557065ce9fda3c2579f4"}],"database_specific":{"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:shellhub:shellhub:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"0.24.2"}]}}],"versions":["v0.23.0","v0.21.5","v0.24.1","v0.24.0","v0.24.0-rc.1","v0.23.0-rc.4","v0.23.0-rc.3","v0.23.0-rc.2","v0.23.0-rc.1","v0.22.0","v0.22.0-rc.2","v0.22.0-rc.1","v0.21.4","v0.21.3","v0.21.2","v0.21.1","v0.21.0","v0.21.0-rc.5","v0.21.0-rc.4","v0.21.0-rc.3","v0.21.0-rc.2","v0.21.0-rc.1","v0.20.1","v0.20.1-rc.1","v0.20.0","v0.20.0-rc.5","v0.20.0-rc.4","v0.20.0-rc.3","v0.20.0-rc.2","v0.20.0-rc.1","v0.19.2","v0.19.2-rc.2","v0.19.2-rc.1","v0.19.1","v0.19.1-rc.2","v0.19.1-rc.1","v0.19.0","v0.19.0-rc.9","v0.19.0-rc.8","v0.19.0-rc.7","v0.19.0-rc.6","v0.19.0-rc.5","v0.19.0-rc.4","v0.19.0-rc.3","v0.19.0-rc.2","v0.19.0-rc.1","v0.18.3","v0.18.2","v0.18.2-rc.2","v0.18.2-rc.1","v0.18.1","v0.18.0","v0.18.0-rc.7","v0.18.0-rc.6","v0.18.0-rc.5","v0.18.0-rc.4","v0.18.0-rc.3","v0.18.0-rc.2","v0.18.0-rc.1","v0.17.2","v0.17.2-rc.3","v0.17.2-rc.2","v0.17.2-rc.1","v0.17.1","v0.17.1-rc.1","v0.17.0","v0.17.0-rc.4","v0.17.0-rc.3","v0.17.0-rc.2","v0.17.0-rc.1","v0.16.0","v0.16.0-rc.2","v0.16.0-rc.1","v0.15.2-rc.1","v0.15.1","v0.15.1-rc.3","v0.15.1-rc.2","v0.15.1-rc.1","v0.15.0","v0.15.0-rc.6","v0.15.0-rc.5","v0.15.0-rc.4","v0.15.0-rc.3","v0.15.0-rc.2","v0.15.0-rc.1","v0.14.3","v0.14.3-rc.1","v0.14.2","v0.14.1","v0.14.0","v0.14.0-rc.7","v0.14.0-rc.6","v0.14.0-rc.5","v0.14.0-rc.4","v0.14.0-rc.3","v0.14.0-rc.2","v0.14.0-rc.1","v0.13.6","v0.13.6-rc.3","v0.13.6-rc.2","v0.13.6-rc.1","v0.13.5","v0.13.5-rc.2","v0.13.5-rc.1","v0.13.4","api/v0.13.4","v0.13.4-rc.2","v0.13.4-rc.1","v0.13.3","v0.13.3-rc.1","v0.13.2","api/v0.13.2","v0.13.1","v0.13.0","api/v0.13.0","v0.13.0-rc.12","api/v0.13.0-rc.12","v0.13.0-rc.11","api/v0.13.0-rc.11","api/v0.13.0-rc.10","v0.13.0-rc.10","v0.13.0-rc.9","v0.13.0-rc.8","v0.13.0-rc.7","v0.13.0-rc.6","v0.13.0-rc.5","v0.13.0-rc.4","v0.13.0-rc.3","v0.13.0-rc.2","v0.13.0-rc.1","v0.12.5","v0.12.5-rc.11","v0.12.5-rc.10","v0.12.5-rc.9","v0.12.5-rc.8","v0.12.5-rc.7","v0.12.5-rc.6","v0.12.5-rc.5","v0.12.5-rc.4","v0.12.5-rc.3","v0.12.5-rc.2","v0.12.5-rc.1","v0.12.4","v0.12.4-rc.5","v0.12.4-rc.4","v0.12.4-rc.3","v0.12.4-rc.2","v0.12.4-rc.1","api/v0.12.4-rc.1","v0.12.3","v0.12.2","v0.12.2-rc.6","v0.12.2-rc.5","v0.12.2-rc.4","v0.12.2-rc.3","v0.12.2-rc.2","v0.12.2-rc.1","v0.12.1","v0.12.1-rc.3","v0.12.1-rc.2","v0.12.1-rc.1","api/v0.12.1-rc.1","v0.12.0","v0.12.0-rc.4","v0.12.0-rc.3","v0.12.0-rc.2","v0.12.0-rc.1","v0.11.8","v0.11.8-rc.5","v0.11.8-rc.4","v0.11.8-rc.3","v0.11.8-rc.2","v0.11.8-rc.1","v0.11.7","v0.11.7-rc.8","v0.11.7-rc.7","v0.11.7-rc.6","v0.11.7-rc.5","v0.11.7-rc.4","v0.11.7-rc.3","v0.11.7-rc.2","v0.11.7-rc.1","v0.11.6","v0.11.5","v0.11.4","v0.11.3","v0.11.3-rc.2","v0.11.3-rc.1","v0.11.2","v0.11.2-rc.1","v0.11.1","v0.11.1-rc.1","v0.11.0","v0.11.0-rc.8","v0.11.0-rc.7","v0.11.0-rc.6","v0.11.0-rc.5","v0.11.0-rc.4","v0.11.0-rc.3","v0.11.0-rc.2","v0.11.0-rc.1","v0.10.10","v0.10.10-rc.3","v0.10.10-rc.2","v0.10.10-rc.1","v0.10.9","v0.10.9-rc.3","v0.10.9-rc.2","v0.10.9-rc.1","v0.10.8","v0.10.8-rc.1","v0.10.7","v0.10.7-rc.5","v0.10.7-rc.4","v0.10.7-rc.3","v0.10.7-rc.2","v0.10.7-rc.1","v0.10.6","v0.10.5","v0.10.5-rc.3","v0.10.5-rc.2","v0.10.5-rc.1","v0.10.2","v0.10.2-rc.2","v0.10.2-rc.1","v0.10.1","v0.10.1-rc.1","v0.10.0","v0.10.0-rc.3","v0.10.0-rc.2","v0.10.0-rc.1","v0.9.6-rc.2","v0.9.6-rc.1","v0.9.3","v0.9.3-rc.4","v0.9.3-rc.3","v0.9.3-rc.2","v0.9.3-rc.1","v0.9.2","v0.9.2-rc.2","v0.9.2-rc.1","v0.9.1","v0.9.1-rc.8","v0.9.1-rc.7","v0.9.1-rc.6","v0.9.1-rc.5","v0.9.1-rc.4","v0.9.1-rc.3","v0.9.1-rc.2","v0.9.1-rc.1","api/v0.9.1-rc.1","v0.9.0","v0.8.3-rc.5","v0.8.3-rc.4","v0.8.3-rc.3","v0.8.3-rc.2","v0.8.3-rc.1","v0.8.2","api/v0.8.2","v0.8.2-rc.6","v0.8.2-rc.5","v0.8.2-rc.4","v0.8.2-rc.3","api/v0.8.2-rc.3","v0.8.2-rc.2","v0.8.2-rc.1","v0.8.1","v0.8.0-rc.7","v0.8.0-rc.6","v0.8.0-rc.5","v0.8.0-rc.4","v0.8.0-rc.3","v0.8.0-rc.2","v0.8.0-rc.1","v0.7.3","v0.7.2","v0.7.1-rc.3","v0.7.1-rc.2","v0.7.1-rc.1","v0.7.0","api/v0.7.0","v0.6.4","api/v0.6.4","v0.6.3","api/v0.6.3","v0.6.2","api/v0.6.2","v0.6.1","api/v0.6.1","v0.6.0","api/v0.6.0","v0.6.0-rc.3","v0.6.0-rc.2","v0.5.3-rc.5","v0.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