{"id":"CVE-2018-16848","aliases":["DEBIAN-CVE-2018-16848","EUVD-2020-0112","GHSA-443j-6p7g-6v4w","PYSEC-2020-240","UBUNTU-CVE-2018-16848","USN-7465-1"],"status":"published","title":"OpenStack Mistral DoS","description":"A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. 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Tracking","Vendor Advisory","report","web"]},{"url":"https://bugs.launchpad.net/mistral/+bug/1785657","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-16848","tags":["advisory"]},{"url":"https://github.com/openstack/mistral/commit/eac23d9e774f658f9d4743c99aa2743eb104c3f9","tags":["web"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/mistral/PYSEC-2020-240.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-443j-6p7g-6v4w","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-16848","tags":["advisory"]},{"url":"https://github.com/openstack/mistral","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2018-16848","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-16848","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7465-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-16849","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-3866","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-16848","description":"A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.","status":"published","published":"2020-06-15T14:18:22Z","modified":"2024-08-05T10:32:54.03Z","updated_at":"2026-11-02T14:35:10.685174Z"}],"euvd":[{"id":"EUVD-2020-0112","description":"A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.","status":"published","published":"2020-06-15T14:18:22Z","modified":"2024-08-05T10:32:54Z","updated_at":"2026-11-03T02:39:40.316949Z"}],"ghsa":[{"id":"GHSA-443j-6p7g-6v4w","title":"OpenStack Mistral DoS","description":"A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.","status":"published","published":"2022-05-24T17:20:25Z","modified":"2024-09-25T20:28:05Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:38:06.29677Z"}],"nvd":[{"id":"CVE-2018-16848","description":"A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.","status":"published","published":"2020-06-15T15:15:09.427Z","modified":"2026-06-17T01:44:54.207Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:05:00.03074Z"}],"osv":[{"id":"CVE-2018-16848","description":"A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.","status":"published","published":"2020-06-15T15:15:09.427Z","modified":"2026-10-24T10:30:28.231667723Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:08.533609Z"},{"id":"DEBIAN-CVE-2018-16848","description":"A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.","status":"published","published":"2020-06-15T15:15:09.427Z","modified":"2026-10-23T18:03:02.050865151Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:30.290351Z"},{"id":"GHSA-443j-6p7g-6v4w","title":"OpenStack Mistral DoS","description":"A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.","status":"published","published":"2022-05-24T17:20:25Z","modified":"2024-09-25T20:33:13.320636Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"},{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:36.434231Z"},{"id":"UBUNTU-CVE-2018-16848","description":"A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.","status":"published","published":"2020-06-15T15:15:00Z","modified":"2026-02-04T04:11:29.26745Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:17.496046Z"},{"id":"PYSEC-2020-240","description":"A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.","status":"published","published":"2020-06-15T15:15:00Z","modified":"2026-06-10T17:02:16.283961831Z","updated_at":"2026-11-02T15:52:52.192131Z"},{"id":"USN-7465-1","title":"mistral, python-mistral-lib vulnerabilities","description":"It was discovered that Mistral incorrectly handled nested anchors in YAML\nfiles. An attacker could possibly use this issue to cause a denial of\nservice. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-16848)\n\nPierre Gaxatte discovered that Mistral incorrectly handled erroneous SSH\nprivate key filename commands. An attacker could possibly use this issue to\nexpose sensitive information. (CVE-2018-16849)\n\nIt was discovered that Mistral incorrectly handled the permissions of\nsensitive log files. An attacker could possibly use this issue to expose\nsensitive information. This issue only affected Ubuntu 18.04 LTS.\n(CVE-2019-3866)\n","status":"published","published":"2025-04-28T12:07:52Z","modified":"2026-06-25T13:32:30.360365632Z","updated_at":"2026-11-02T16:58:19.988474Z"}]}}