{"id":"CVE-2020-22781","aliases":["EUVD-2020-15538","GHSA-66mc-4v3r-qwh3"],"status":"published","title":"In Etherpad \u003c 1.8.3, a specially crafted URI would raise an unhandled exception in the cache...","description":"In Etherpad \u003c 1.8.3, a specially crafted URI would raise an unhandled exception in the cache mechanism and cause a denial of service (crash the instance).","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01111,"percentile":0.66212,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-89"],"published":"2021-04-28T20:23:11Z","modified":"2026-10-20T10:52:14Z","products":[{"vendor":"etherpad","product":"etherpad"}],"references":[{"url":"https://github.com/ether/etherpad-lite/issues/3502","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-22781"},{"url":"https://github.com/advisories/GHSA-66mc-4v3r-qwh3"}],"sources":{"cve":[{"id":"CVE-2020-22781","description":"In Etherpad \u003c 1.8.3, a specially crafted URI would raise an unhandled exception in the cache mechanism and cause a denial of service (crash the instance).","status":"published","published":"2021-04-28T20:23:11Z","modified":"2024-08-04T14:51:11.023Z","updated_at":"2026-11-02T14:35:46.873079Z"}],"euvd":[{"id":"EUVD-2020-15538","description":"In Etherpad \u003c 1.8.3, a specially crafted URI would raise an unhandled exception in the cache mechanism and cause a denial of service (crash the instance).","status":"published","published":"2021-04-28T20:23:11Z","modified":"2024-08-04T14:51:11Z","updated_at":"2026-11-03T03:07:22.274854Z"}],"ghsa":[{"id":"GHSA-66mc-4v3r-qwh3","title":"In Etherpad \u003c 1.8.3, a specially crafted URI would raise an unhandled exception in the cache...","description":"In Etherpad \u003c 1.8.3, a specially crafted URI would raise an unhandled exception in the cache mechanism and cause a denial of service (crash the instance).","status":"published","published":"2022-05-24T17:49:05Z","modified":"2023-01-29T05:07:26Z","cwes":["CWE-89"],"updated_at":"2026-11-02T14:46:10.15423Z"}],"nvd":[{"id":"CVE-2020-22781","description":"In Etherpad \u003c 1.8.3, a specially crafted URI would raise an unhandled exception in the cache mechanism and cause a denial of service (crash the instance).","status":"published","published":"2021-04-28T21:15:08.587Z","modified":"2026-06-17T03:04:22.543Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-89"],"updated_at":"2026-11-02T14:06:39.25999Z"}],"osv":[{"id":"CVE-2020-22781","description":"In Etherpad \u003c 1.8.3, a specially crafted URI would raise an unhandled exception in the cache mechanism and cause a denial of service (crash the instance).","status":"published","published":"2021-04-28T21:15:08.587Z","modified":"2026-10-20T10:52:14.807115063Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:15.534837Z"}]}}