{"cve":{"cve_id":"CVE-2026-45689","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":null,"epss_percentile":null,"epss_as_of":null,"description":"Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11, an unauthenticated network attacker obtains a valid Rocket.Chat OAuth access token for an arbitrary user by sending a single HTTP POST with MongoDB query operators to /oauth/token. The Rocket.Chat OAuth2 server does not validate that grant parameters are strings before forwarding them to findOne({...}) against the oauth_apps and oauth_access_tokens collections, so an attacker substitutes {\"$ne\": null} for client_id, client_secret, and refresh_token and receives a freshly minted {access_token, refresh_token} pair bound to whichever user's refresh token Mongo returned first. The resulting access token is a first-class bearer credential against the full /api/v1/* surface as that user. By iterating with $nin / $regex operators the attacker walks the entire oauth_access_tokens collection, collecting one fresh access token per user per request. If any matched token belongs to an admin, the stolen bearer gives full admin API access (including Apps-Engine app installation, i.e. server-side code execution). No account, credentials, userId, or prior interaction with the instance are required. This vulnerability is fixed in 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11.","published_at":"2026-06-24T20:57:32.281000Z","last_modified_at":null,"cvss_v3_score":9.1,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cvss_v3_severity":"CRITICAL","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-943"],"nvd_references":["https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-8p25-fm45-pjrw"],"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":"2026-06-28T17:54:40.246008Z","updated_at":"2026-06-28T23:30:33.717402Z"},"effective_severity":"CRITICAL","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":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"rocketchat","vendor_name":"RocketChat","product_slug":"rocket.chat","product_name":"Rocket.Chat","version_start":">= 8.5.0-rc.0, < 8.5.0","version_start_inclusive":true,"version_end":">= 8.5.0-rc.0, < 8.5.0","version_end_inclusive":true,"cpe23_uri":"cve5:rocketchat:rocket.chat:>= 8.5.0-rc.0, < 8.5.0:>= 8.5.0-rc.0, < 8.5.0"},{"vendor_slug":"rocketchat","vendor_name":"RocketChat","product_slug":"rocket.chat","product_name":"Rocket.Chat","version_start":">= 8.4.0-rc.0, < 8.4.1","version_start_inclusive":true,"version_end":">= 8.4.0-rc.0, < 8.4.1","version_end_inclusive":true,"cpe23_uri":"cve5:rocketchat:rocket.chat:>= 8.4.0-rc.0, < 8.4.1:>= 8.4.0-rc.0, < 8.4.1"},{"vendor_slug":"rocketchat","vendor_name":"RocketChat","product_slug":"rocket.chat","product_name":"Rocket.Chat","version_start":">= 8.3.0-rc.0, < 8.3.3","version_start_inclusive":true,"version_end":">= 8.3.0-rc.0, < 8.3.3","version_end_inclusive":true,"cpe23_uri":"cve5:rocketchat:rocket.chat:>= 8.3.0-rc.0, < 8.3.3:>= 8.3.0-rc.0, < 8.3.3"},{"vendor_slug":"rocketchat","vendor_name":"RocketChat","product_slug":"rocket.chat","product_name":"Rocket.Chat","version_start":">= 8.2.0-rc.0, < 8.2.3","version_start_inclusive":true,"version_end":">= 8.2.0-rc.0, < 8.2.3","version_end_inclusive":true,"cpe23_uri":"cve5:rocketchat:rocket.chat:>= 8.2.0-rc.0, < 8.2.3:>= 8.2.0-rc.0, < 8.2.3"},{"vendor_slug":"rocketchat","vendor_name":"RocketChat","product_slug":"rocket.chat","product_name":"Rocket.Chat","version_start":">= 8.1.0-rc.0, < 8.1.4","version_start_inclusive":true,"version_end":">= 8.1.0-rc.0, < 8.1.4","version_end_inclusive":true,"cpe23_uri":"cve5:rocketchat:rocket.chat:>= 8.1.0-rc.0, < 8.1.4:>= 8.1.0-rc.0, < 8.1.4"},{"vendor_slug":"rocketchat","vendor_name":"RocketChat","product_slug":"rocket.chat","product_name":"Rocket.Chat","version_start":">= 8.0.0-rc.0, < 8.0.5","version_start_inclusive":true,"version_end":">= 8.0.0-rc.0, < 8.0.5","version_end_inclusive":true,"cpe23_uri":"cve5:rocketchat:rocket.chat:>= 8.0.0-rc.0, < 8.0.5:>= 8.0.0-rc.0, < 8.0.5"},{"vendor_slug":"rocketchat","vendor_name":"RocketChat","product_slug":"rocket.chat","product_name":"Rocket.Chat","version_start":">= 7.11.0-rc.0, < 7.13.7","version_start_inclusive":true,"version_end":">= 7.11.0-rc.0, < 7.13.7","version_end_inclusive":true,"cpe23_uri":"cve5:rocketchat:rocket.chat:>= 7.11.0-rc.0, < 7.13.7:>= 7.11.0-rc.0, < 7.13.7"},{"vendor_slug":"rocketchat","vendor_name":"RocketChat","product_slug":"rocket.chat","product_name":"Rocket.Chat","version_start":"< 7.10.11","version_start_inclusive":true,"version_end":"< 7.10.11","version_end_inclusive":true,"cpe23_uri":"cve5:rocketchat:rocket.chat:< 7.10.11:< 7.10.11"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-8p25-fm45-pjrw","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-06-24T20:57:32.281000Z","label":"CVE published","source":null}]}