{"id":"CVE-2026-32318","summary":"Cryptomator for IOS: Tampered vault configuration allows MITM attack on Hub API","details":"Cryptomator for IOS offers multi-platform transparent client-side encryption for files in the cloud. Prior to version 2.8.3, an integrity check vulnerability allows an attacker tamper with the vault configuration file leading to a man-in-the-middle vulnerability in Hub key loading mechanism. Before this fix, the client trusted endpoints from the vault config without host authenticity checks, which could allow token exfiltration by mixing a legitimate auth endpoint with a malicious API endpoint. Impacted are users unlocking Hub-backed vaults with affected client versions in environments where an attacker can alter the vault.cryptomator file. This issue has been patched in version 2.8.3.","aliases":["GHSA-g7fr-c82r-hm6j"],"modified":"2026-04-10T05:43:00.685747Z","published":"2026-03-20T18:27:22.410Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32318.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-346","CWE-354","CWE-451","CWE-923"]},"references":[{"type":"WEB","url":"https://github.com/cryptomator/ios/releases/tag/2.8.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32318.json"},{"type":"ADVISORY","url":"https://github.com/cryptomator/ios/security/advisories/GHSA-g7fr-c82r-hm6j"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32318"},{"type":"FIX","url":"https://github.com/cryptomator/ios/commit/98c31280304af65c0932eb547d5fe4be2d16929c"},{"type":"FIX","url":"https://github.com/cryptomator/ios/pull/444"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cryptomator/ios","events":[{"introduced":"0"},{"fixed":"98c31280304af65c0932eb547d5fe4be2d16929c"}]},{"type":"GIT","repo":"https://github.com/cryptomator/ios","events":[{"introduced":"0"},{"fixed":"83b27d78a19317e5a3b7a7bf85c8839bb1317d4d"}]}],"versions":["1.6.0-alpha1","1.6.0-alpha2","1.6.0-alpha3","2.0.0","2.0.0-alpha1","2.0.0-beta1","2.0.0-beta2","2.0.0-beta3","2.0.0-beta4","2.0.0-beta5","2.0.0-beta6","2.0.0-beta7","2.0.0-beta8","2.0.0-beta9","2.0.0-rc1","2.0.1","2.0.2","2.0.3","2.0.4","2.1.0","2.1.1","2.1.2","2.1.3","2.2.0","2.2.1","2.2.2","2.2.3","2.2.4","2.2.5","2.3.0","2.4.0","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.4.8","2.4.9","2.5.0","2.5.1","2.5.2","2.6.0","2.6.1","2.6.2","2.6.3","2.6.4","2.6.5","2.6.6","2.7.0","2.7.1","2.7.2","2.7.3","2.8.0","2.8.1","2.8.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32318.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N"}]}