{"id":"CVE-2025-53636","aliases":["EUVD-2025-21186","GHSA-x5xv-fw37-v524"],"status":"published","title":"Open OnDemand Shell App closed websocket DoS","description":"Open OnDemand is an open-source HPC portal. Users can flood logs by interacting with the shell app and generating many errors. Users who flood logs can create very large log files causing a Denial of Service (DoS) to the ondemand system. This vulnerability is fixed in 3.1.14 and 4.0.6.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00336,"percentile":0.27214,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400","CWE-779"],"published":"2025-07-11T21:20:14Z","modified":"2026-10-28T02:30:32Z","products":[{"vendor":"osc","product":"ondemand"}],"references":[{"url":"https://github.com/OSC/ondemand/security/advisories/GHSA-x5xv-fw37-v524","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/OSC/ondemand/commit/40800d68cd019c5f1c48b2deafebba6dff4abee2","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/OSC/ondemand/commit/96f29b995e1add7562516614e4dc8d961987e8b4","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53636.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53636","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-53636","title":"Open OnDemand Shell App closed websocket DoS","description":"Open OnDemand is an open-source HPC portal. Users can flood logs by interacting with the shell app and generating many errors. Users who flood logs can create very large log files causing a Denial of Service (DoS) to the ondemand system. This vulnerability is fixed in 3.1.14 and 4.0.6.","status":"published","published":"2025-07-11T21:20:14.261Z","modified":"2025-07-14T20:13:13.885Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-400","CWE-779"],"updated_at":"2026-11-02T14:32:49.180768Z"}],"euvd":[{"id":"EUVD-2025-21186","description":"Open OnDemand is an open-source HPC portal. Users can flood logs by interacting with the shell app and generating many errors. Users who flood logs can create very large log files causing a Denial of Service (DoS) to the ondemand system. This vulnerability is fixed in 3.1.14 and 4.0.6.","status":"published","published":"2025-07-11T21:20:14Z","modified":"2025-07-14T20:13:13Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T20:32:08.210064Z"}],"nvd":[{"id":"CVE-2025-53636","description":"Open OnDemand is an open-source HPC portal. Users can flood logs by interacting with the shell app and generating many errors. Users who flood logs can create very large log files causing a Denial of Service (DoS) to the ondemand system. This vulnerability is fixed in 3.1.14 and 4.0.6.","status":"published","published":"2025-07-11T22:15:25.4Z","modified":"2026-06-17T09:38:36.9Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-400","CWE-779"],"updated_at":"2026-11-02T14:11:18.285862Z"}],"osv":[{"id":"CVE-2025-53636","title":"Open OnDemand Shell App closed websocket DoS","description":"Open OnDemand is an open-source HPC portal. Users can flood logs by interacting with the shell app and generating many errors. Users who flood logs can create very large log files causing a Denial of Service (DoS) to the ondemand system. This vulnerability is fixed in 3.1.14 and 4.0.6.","status":"published","published":"2025-07-11T21:20:14.261Z","modified":"2026-10-28T02:30:32.149316556Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-400","CWE-779"],"updated_at":"2026-11-02T15:44:50.45326Z"}]}}