{"id":"CVE-2026-28798","summary":"Arbitrary internal service access via /v1/sys/proxy when Cloudflare Tunnel is enabled on ZimaOS","details":"ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. Prior to version 1.5.3, a proxy endpoint (/v1/sys/proxy) exposed by ZimaOS's web interface can be abused (via an externally reachable domain using a Cloudflare Tunnel) to make requests to internal localhost services. This results in unauthenticated access to internal-only endpoints and sensitive local services when the product is reachable from the Internet through a Cloudflare Tunnel. This issue has been patched in version 1.5.3.","aliases":["GHSA-vqqj-f979-8c8m"],"modified":"2026-07-08T08:12:45.350038447Z","published":"2026-04-03T20:00:48.045Z","database_specific":{"cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28798.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/IceWhaleTech/ZimaOS/releases/tag/1.5.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28798.json"},{"type":"ADVISORY","url":"https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-vqqj-f979-8c8m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28798"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/icewhaletech/zimaos","events":[{"introduced":"0"},{"fixed":"4805a89cb8038ed2f26d25866f1c53aa61bef3b5"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"1.5.3"}]}}],"versions":["1.5.3-beta1","1.5.2","1.5.2-beta3","1.5.2-beta2","1.5.2-beta1","1.5.1","1.5.1-beta1","1.5.0","1.5.0-beta1","1.4.4-1","1.4.4","1.4.4-beta1","1.4.3","1.4.2","1.4.2-beta2","1.4.2-beta1","1.4.1","1.4.1-beta2","1.4.1-beta1","1.4.0","1.4.0-beta2","1.4.0-beta1","1.3.3","1.3.3-beta1","1.3.2-1","1.3.2","1.3.2-beta2","1.3.2-beta1","1.3.1-1","1.3.1","1.3.1-beta1","1.3.0-2","1.3.0-1","1.3.0","1.3.0-beta1","1.2.5","1.2.5-beta3","1.2.5-beta2","1.2.5-beta1","1.2.4-beta2","1.2.4","1.2.4-beta1","1.2.3-beta1","1.2.3","1.2.2","1.1.0","1.0.0","0.4.9.4","0.4.9.3","0.4.9.2","0.4.9.1","0.4.9","0.4.8.1","0.5.0","0.4.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28798.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"}]}