{"id":"CVE-2026-44426","state":"PUBLISHED","title":"ShellHub: Cross-tenant IDOR in `GET /api/namespaces/:tenant` via API Key bypasses  membership check","description":"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.","publishedAt":"2026-05-13T21:06:06.222Z","updatedAt":"2026-05-14T15:54:46.896Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["shellhub-io shellhub"],"affected":[{"vendor":"shellhub-io","product":"shellhub","versions":[{"version":"< 0.24.2","status":"affected"}]}],"references":["https://github.com/shellhub-io/shellhub/security/advisories/GHSA-vwx9-7qcf-gg7f"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/44xxx/CVE-2026-44426.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44426","state":"PUBLISHED","datePublished":"2026-05-13T21:06:06.222Z","dateUpdated":"2026-05-14T15:54:46.896Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-06T14:40:00.953Z"},"containers":{"cna":{"title":"ShellHub: Cross-tenant IDOR in `GET /api/namespaces/:tenant` via API Key bypasses  membership check","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"shellhub-io","product":"shellhub","versions":[{"version":"< 0.24.2","status":"affected"}]}],"references":[{"url":"https://github.com/shellhub-io/shellhub/security/advisories/GHSA-vwx9-7qcf-gg7f","name":"https://github.com/shellhub-io/shellhub/security/advisories/GHSA-vwx9-7qcf-gg7f","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-13T21:06:06.222Z"},"source":{"advisory":"GHSA-vwx9-7qcf-gg7f","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/shellhub-io/shellhub/security/advisories/GHSA-vwx9-7qcf-gg7f","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-14T15:54:14.455227Z","id":"CVE-2026-44426","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-14T15:54:46.896Z"}}]}}}