{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"moderate"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2020-26890","title":"Title"},{"category":"description","text":"Matrix Synapse before 1.20.0 erroneously permits non-standard NaN, Infinity, and -Infinity JSON values in fields of m.room.member events, allowing remote attackers to execute a denial of service attack against the federation and common Matrix clients. If such a malformed event is accepted into the room's state, the impact is long-lasting and is not fixed by an upgrade to a newer version, requiring the event to be manually redacted instead. Since events are replicated to servers of other room members, the impact is not constrained to the server of the event sender.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2020-26890","url":"https://www.suse.com/security/cve/CVE-2020-26890"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1179180 for CVE-2020-26890","url":"https://bugzilla.suse.com/1179180"}],"title":"SUSE CVE CVE-2020-26890","tracking":{"current_release_date":"2025-02-17T06:14:01Z","generator":{"date":"2023-02-15T03:53:02Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2020-26890","initial_release_date":"2023-02-15T03:53:02Z","revision_history":[{"date":"2023-02-15T03:53:02Z","number":"2","summary":"Current version"},{"date":"2025-01-01T05:13:48Z","number":"3","summary":"Current version"},{"date":"2025-02-15T05:52:28Z","number":"4","summary":"Current version"},{"date":"2025-02-17T06:14:01Z","number":"5","summary":"Current version"}],"status":"interim","version":"5"}}}