{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"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-2025-30355","title":"Title"},{"category":"description","text":"Synapse is an open source Matrix homeserver implementation. A malicious server can craft events which, when received, prevent Synapse version up to 1.127.0 from federating with other servers. The vulnerability has been exploited in the wild and has been fixed in Synapse v1.127.1. No known workarounds are available.","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-2025-30355","url":"https://www.suse.com/security/cve/CVE-2025-30355"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1240153 for CVE-2025-30355","url":"https://bugzilla.suse.com/1240153"},{"category":"external","summary":"Advisory link for openSUSE-SU-2025:14939-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/BMJS2YEFBSOJRCOH6GFYZZHGJUCSI6ZU/"}],"title":"SUSE CVE CVE-2025-30355","tracking":{"current_release_date":"2025-08-27T23:29:02Z","generator":{"date":"2025-03-28T03:00:14Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2025-30355","initial_release_date":"2025-03-28T03:00:14Z","revision_history":[{"date":"2025-03-28T03:00:14Z","number":"2","summary":"Current version"},{"date":"2025-03-29T03:02:56Z","number":"3","summary":"Current version"},{"date":"2025-03-30T02:23:22Z","number":"4","summary":"Current version"},{"date":"2025-08-27T23:29:02Z","number":"5","summary":"Current version"}],"status":"interim","version":"5"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"openSUSE Tumbleweed","product":{"name":"openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed","product_identification_helper":{"cpe":"cpe:/o:opensuse:tumbleweed"}}},{"category":"product_version","name":"matrix-synapse-1.127.1-1.1","product":{"name":"matrix-synapse-1.127.1-1.1","product_id":"matrix-synapse-1.127.1-1.1","product_identification_helper":{"cpe":"cpe:2.3:a:matrix:synapse:1.127.1:*:*:*:*:*:*:*","purl":"pkg:rpm/suse/matrix-synapse@1.127.1-1.1"}}}],"category":"product_family","name":"SUSE Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"matrix-synapse-1.127.1-1.1 as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:matrix-synapse-1.127.1-1.1"},"product_reference":"matrix-synapse-1.127.1-1.1","relates_to_product_reference":"openSUSE Tumbleweed"}]},"vulnerabilities":[{"cve":"CVE-2025-30355","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2025-30355"}],"notes":[{"category":"general","text":"Synapse is an open source Matrix homeserver implementation. A malicious server can craft events which, when received, prevent Synapse version up to 1.127.0 from federating with other servers. The vulnerability has been exploited in the wild and has been fixed in Synapse v1.127.1. No known workarounds are available.","title":"CVE description"}],"product_status":{"recommended":["openSUSE Tumbleweed:matrix-synapse-1.127.1-1.1"]},"references":[{"category":"external","summary":"CVE-2025-30355","url":"https://www.suse.com/security/cve/CVE-2025-30355"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1240153 for CVE-2025-30355","url":"https://bugzilla.suse.com/1240153"},{"category":"external","summary":"Advisory link for openSUSE-SU-2025:14939-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/BMJS2YEFBSOJRCOH6GFYZZHGJUCSI6ZU/"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["openSUSE Tumbleweed:matrix-synapse-1.127.1-1.1"]}],"scores":[{"cvss_v3":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"products":["openSUSE Tumbleweed:matrix-synapse-1.127.1-1.1"]}],"threats":[{"category":"impact","date":"2025-03-27T03:00:09Z","details":"important"}],"title":"CVE-2025-30355"}]}