{"id":"CVE-2020-24653","aliases":["EUVD-2022-5247","GHSA-rwx9-wqj8-vr77"],"status":"published","title":"Expo on iOS is insecure due incorrect security attribute application","description":"secure-store in Expo through 2.16.1 on iOS provides the insecure kSecAttrAccessibleAlwaysThisDeviceOnly policy when WHEN_UNLOCKED_THIS_DEVICE_ONLY is used.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0117,"percentile":0.67642,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2020-08-26T04:04:26Z","modified":"2026-06-17T03:05:55Z","fixes":[{"ecosystem":"npm","package":"expo","fixed_in":["9.1.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"expo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.1.0"}]}]},{"source":"osv","ecosystem":"npm","package":"expo","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"9.1.0"}]}]}],"products":[{"vendor":"expo","product":"expo"}],"references":[{"url":"https://github.com/expo/expo/pull/9264","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-24653","tags":["advisory"]},{"url":"https://github.com/expo/expo/commit/1d82bf07fae2c96273e9189997e521359cffc1a9#diff-5b2820f378da980bd8a8185e2e1b2f9ce085d834534483f29c67932f282cc5c9","tags":["web"]},{"url":"https://github.com/expo/expo/blob/main/packages/expo-secure-store/CHANGELOG.md","tags":["web"]},{"url":"https://github.com/advisories/GHSA-rwx9-wqj8-vr77"},{"url":"https://github.com/expo/expo","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-24653","description":"secure-store in Expo through 2.16.1 on iOS provides the insecure kSecAttrAccessibleAlwaysThisDeviceOnly policy when WHEN_UNLOCKED_THIS_DEVICE_ONLY is used.","status":"published","published":"2020-08-26T04:04:26Z","modified":"2024-08-04T15:19:09.051Z","updated_at":"2026-11-02T14:35:54.468882Z"}],"euvd":[{"id":"EUVD-2022-5247","description":"secure-store in Expo through 2.16.1 on iOS provides the insecure kSecAttrAccessibleAlwaysThisDeviceOnly policy when WHEN_UNLOCKED_THIS_DEVICE_ONLY is used.","status":"published","published":"2020-08-26T04:04:26Z","modified":"2024-08-04T15:19:09Z","updated_at":"2026-11-03T03:07:18.658916Z"}],"ghsa":[{"id":"GHSA-rwx9-wqj8-vr77","title":"Expo on iOS is insecure due incorrect security attribute application","description":"secure-store in Expo through 9.1.0 on iOS provides the insecure kSecAttrAccessibleAlwaysThisDeviceOnly policy when WHEN_UNLOCKED_THIS_DEVICE_ONLY is used.","status":"published","published":"2022-05-24T17:26:43Z","modified":"2023-02-02T05:07:35Z","updated_at":"2026-11-02T14:36:41.247728Z"}],"nvd":[{"id":"CVE-2020-24653","description":"secure-store in Expo through 2.16.1 on iOS provides the insecure kSecAttrAccessibleAlwaysThisDeviceOnly policy when WHEN_UNLOCKED_THIS_DEVICE_ONLY is used.","status":"published","published":"2020-08-26T05:15:10.87Z","modified":"2026-06-17T03:05:55.43Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:13.600965Z"}],"osv":[{"id":"GHSA-rwx9-wqj8-vr77","title":"Expo on iOS is insecure due incorrect security attribute application","description":"secure-store in Expo through 9.1.0 on iOS provides the insecure kSecAttrAccessibleAlwaysThisDeviceOnly policy when WHEN_UNLOCKED_THIS_DEVICE_ONLY is used.","status":"published","published":"2022-05-24T17:26:43Z","modified":"2023-11-08T04:03:08.308599Z","updated_at":"2026-11-02T15:46:56.639206Z"}]}}