{"cve":{"cve_id":"CVE-2021-32832","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.0162,"epss_percentile":0.72953,"epss_as_of":"2026-06-23","description":"Rocket.Chat is an open-source fully customizable communications platform developed in JavaScript. In Rocket.Chat before versions 3.11.3, 3.12.2, and 3.13 an issue with certain regular expressions could lead potentially to Denial of Service. This was fixed in versions 3.11.3, 3.12.2, and 3.13.","published_at":"2021-08-30T20:55:13Z","last_modified_at":null,"cvss_v3_score":4.3,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-400"],"nvd_references":["https://docs.rocket.chat/guides/security/security-updates","https://securitylab.github.com/advisories/GHSL-2020-310-redos-Rocket.Chat/","https://github.com/RocketChat/Rocket.Chat/releases/tag/3.11.3","https://github.com/RocketChat/Rocket.Chat/commit/4a0dce973e37ec3f56ca2231d6030511dbdd094c"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:15:40.887370Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"L","value_label":"Low"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"rocketchat","vendor_name":"RocketChat","product_slug":"rocket.chat","product_name":"Rocket.Chat","version_start":"< 3.11.3","version_start_inclusive":true,"version_end":"< 3.11.3","version_end_inclusive":true,"cpe23_uri":"cve5:rocketchat:rocket.chat:< 3.11.3:< 3.11.3"}],"exploit_refs":[],"news":[],"references":[{"url":"https://docs.rocket.chat/guides/security/security-updates","source_type":"MISC","tags":[]},{"url":"https://securitylab.github.com/advisories/GHSL-2020-310-redos-Rocket.Chat/","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/RocketChat/Rocket.Chat/releases/tag/3.11.3","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/RocketChat/Rocket.Chat/commit/4a0dce973e37ec3f56ca2231d6030511dbdd094c","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2021-08-30T20:55:13Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:18:31.722192Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:18:31.722192Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:18:31.722192Z","label":"CVSS score revised","source":"cvelistv5"}]}