{"id":"CVE-2018-16477","aliases":["DEBIAN-CVE-2018-16477","EUVD-2018-0801","GHSA-7rr7-rcjw-56vj","openSUSE-SU-2024:11328-1","openSUSE-SU-2024:11347-1"],"status":"published","title":"Exposure of Sensitive Information to an Unauthorized Actor in activestorage","description":"A bypass vulnerability in Active Storage \u003e= 5.2.0 for Google Cloud Storage and Disk services allow an attacker to modify the `content-disposition` and `content-type` parameters which can be used in with HTML files and have them executed inline. Additionally, if combined with other techniques such as cookie bombing and specially crafted AppCache manifests, an attacker can gain access to private signed URLs within a specific storage path. This vulnerability has been fixed in version 5.2.1.1.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01311,"percentile":0.70865,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2018-11-30T19:00:00Z","modified":"2026-10-24T10:30:58Z","fixes":[{"ecosystem":"RubyGems","package":"activestorage","fixed_in":["5.2.1.1"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"rails","fixed_in":["2:5.2.2+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"rails","fixed_in":["2:5.2.2+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"rails","fixed_in":["2:5.2.2+dfsg-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"RubyGems","package":"activestorage","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.2.0"},{"last_affected":"5.2.1.0"},{"fixed":"5.2.1.1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"rails","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:5.2.2+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"rails","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:5.2.2+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"rails","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:5.2.2+dfsg-1"}]}]},{"source":"osv","ecosystem":"RubyGems","package":"activestorage","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.2.0"},{"fixed":"5.2.1.1"}]}],"versions":["5.2.0","5.2.1","5.2.1.rc1"]}],"products":[{"vendor":"rails","product":"https://github.com/rails/rails"},{"vendor":"rubyonrails","product":"rails"}],"references":[{"url":"https://groups.google.com/d/msg/rubyonrails-security/3KQRnXDIuLg/mByx5KkqBAAJ","tags":["x_refsource_MISC","x_transferred","Exploit","Mailing List","Mitigation","Third Party Advisory","evidence","web"]},{"url":"https://weblog.rubyonrails.org/2018/11/27/Rails-4-2-5-0-5-1-5-2-have-been-released/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-16477","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7rr7-rcjw-56vj","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-16477","tags":["advisory"]},{"url":"https://weblog.rubyonrails.org/2018/11/27/Rails-4-2-5-0-5-1-5-2-have-been-released","tags":["web"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2018-16477","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-16782","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-5418","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8162","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-16476","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2018-16477","description":"A bypass vulnerability in Active Storage \u003e= 5.2.0 for Google Cloud Storage and Disk services allow an attacker to modify the `content-disposition` and `content-type` parameters which can be used in with HTML files and have them executed inline. Additionally, if combined with other techniques such as cookie bombing and specially crafted AppCache manifests, an attacker can gain access to private signed URLs within a specific storage path. This vulnerability has been fixed in version 5.2.1.1.","status":"published","published":"2018-11-30T19:00:00Z","modified":"2024-08-05T10:24:32.757Z","cwes":["CWE-200"],"updated_at":"2026-11-02T14:35:11.426178Z"}],"euvd":[{"id":"EUVD-2018-0801","description":"A bypass vulnerability in Active Storage \u003e= 5.2.0 for Google Cloud Storage and Disk services allow an attacker to modify the `content-disposition` and `content-type` parameters which can be used in with HTML files and have them executed inline. Additionally, if combined with other techniques such as cookie bombing and specially crafted AppCache manifests, an attacker can gain access to private signed URLs within a specific storage path. This vulnerability has been fixed in version 5.2.1.1.","status":"published","published":"2018-11-30T19:00:00Z","modified":"2024-08-05T10:24:32Z","updated_at":"2026-11-03T02:39:41.750379Z"}],"ghsa":[{"id":"GHSA-7rr7-rcjw-56vj","title":"Exposure of Sensitive Information to an Unauthorized Actor in activestorage","description":"A bypass vulnerability in Active Storage \u003e= 5.2.0 for Google Cloud Storage and Disk services allow an attacker to modify the `content-disposition` and `content-type` parameters which can be used in with HTML files and have them executed inline. Additionally, if combined with other techniques such as cookie bombing and specially crafted AppCache manifests, an attacker can gain access to private signed URLs within a specific storage path.\n\nVulnerable apps are those using either GCS or the Disk service in production. Other storage services such as S3 or Azure aren't affected.\n","status":"published","published":"2018-12-05T17:17:02Z","modified":"2023-07-05T19:08:31Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:36:55.91458Z"}],"nvd":[{"id":"CVE-2018-16477","description":"A bypass vulnerability in Active Storage \u003e= 5.2.0 for Google Cloud Storage and Disk services allow an attacker to modify the `content-disposition` and `content-type` parameters which can be used in with HTML files and have them executed inline. Additionally, if combined with other techniques such as cookie bombing and specially crafted AppCache manifests, an attacker can gain access to private signed URLs within a specific storage path. This vulnerability has been fixed in version 5.2.1.1.","status":"published","published":"2018-11-30T19:29:00.297Z","modified":"2026-06-17T01:44:21.753Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:04:49.995593Z"}],"osv":[{"id":"CVE-2018-16477","description":"A bypass vulnerability in Active Storage \u003e= 5.2.0 for Google Cloud Storage and Disk services allow an attacker to modify the `content-disposition` and `content-type` parameters which can be used in with HTML files and have them executed inline. Additionally, if combined with other techniques such as cookie bombing and specially crafted AppCache manifests, an attacker can gain access to private signed URLs within a specific storage path. This vulnerability has been fixed in version 5.2.1.1.","status":"published","published":"2018-11-30T19:29:00.297Z","modified":"2026-10-24T10:30:58.599672813Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:08.533609Z"},{"id":"DEBIAN-CVE-2018-16477","description":"A bypass vulnerability in Active Storage \u003e= 5.2.0 for Google Cloud Storage and Disk services allow an attacker to modify the `content-disposition` and `content-type` parameters which can be used in with HTML files and have them executed inline. Additionally, if combined with other techniques such as cookie bombing and specially crafted AppCache manifests, an attacker can gain access to private signed URLs within a specific storage path. This vulnerability has been fixed in version 5.2.1.1.","status":"published","published":"2018-11-30T19:29:00.297Z","modified":"2026-10-23T18:03:00.483377233Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:30.290351Z"},{"id":"GHSA-7rr7-rcjw-56vj","title":"Exposure of Sensitive Information to an Unauthorized Actor in activestorage","description":"A bypass vulnerability in Active Storage \u003e= 5.2.0 for Google Cloud Storage and Disk services allow an attacker to modify the `content-disposition` and `content-type` parameters which can be used in with HTML files and have them executed inline. Additionally, if combined with other techniques such as cookie bombing and specially crafted AppCache manifests, an attacker can gain access to private signed URLs within a specific storage path.\n\nVulnerable apps are those using either GCS or the Disk service in production. Other storage services such as S3 or Azure aren't affected.\n","status":"published","published":"2018-12-05T17:17:02Z","modified":"2024-02-22T05:37:23.778061Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:46:41.349637Z"},{"id":"openSUSE-SU-2024:11328-1","title":"ruby2.7-rubygem-activestorage-5.2-5.2.6-1.2 on GA media","description":"These are all security issues fixed in the ruby2.7-rubygem-activestorage-5.2-5.2.6-1.2 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:11:21.411344Z","updated_at":"2026-11-02T16:58:34.894275Z"},{"id":"openSUSE-SU-2024:11347-1","title":"ruby2.7-rubygem-rails-5.2-5.2.6-1.2 on GA media","description":"These are all security issues fixed in the ruby2.7-rubygem-rails-5.2-5.2.6-1.2 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:33:45.660789Z","updated_at":"2026-11-02T16:58:35.195147Z"}]}}