{"id":"CVE-2021-37759","aliases":["EUVD-2021-24240","GHSA-f9j4-c45h-7xwv"],"status":"published","title":"A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to escalate...","description":"A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to escalate privileges (to the access level of the leaked session ID).","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":"2026-11-11","score":0.01286,"percentile":0.70537,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-532"],"published":"2021-07-31T17:35:10Z","modified":"2026-10-24T10:30:27Z","products":[{"vendor":"graylog","product":"graylog"}],"references":[{"url":"https://www.graylog.org/post/announcing-graylog-v4-1-2","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-37759"},{"url":"https://github.com/advisories/GHSA-f9j4-c45h-7xwv"}],"sources":{"cve":[{"id":"CVE-2021-37759","description":"A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to escalate privileges (to the access level of the leaked session ID).","status":"published","published":"2021-07-31T17:35:10Z","modified":"2024-08-04T01:30:07.466Z","updated_at":"2026-11-02T14:32:58.028461Z"}],"euvd":[{"id":"EUVD-2021-24240","description":"A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to escalate privileges (to the access level of the leaked session ID).","status":"published","published":"2021-07-31T17:35:10Z","modified":"2024-08-04T01:30:07Z","updated_at":"2026-11-03T03:24:26.118239Z"}],"ghsa":[{"id":"GHSA-f9j4-c45h-7xwv","title":"A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to escalate...","description":"A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to escalate privileges (to the access level of the leaked session ID).","status":"published","published":"2022-05-24T19:09:28Z","modified":"2023-01-30T05:01:11Z","cwes":["CWE-532"],"updated_at":"2026-11-02T14:46:21.550142Z"}],"nvd":[{"id":"CVE-2021-37759","description":"A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to escalate privileges (to the access level of the leaked session ID).","status":"published","published":"2021-07-31T18:15:07.837Z","modified":"2026-06-17T04:01:06.313Z","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":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-532"],"updated_at":"2026-11-02T14:06:56.185362Z"}],"osv":[{"id":"CVE-2021-37759","description":"A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to escalate privileges (to the access level of the leaked session ID).","status":"published","published":"2021-07-31T18:15:07.837Z","modified":"2026-10-24T10:30:27.87343617Z","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"}],"updated_at":"2026-11-02T15:44:20.434873Z"}]}}