{"id":"EUVD-2025-201827","revision":"7a468e12f52f484da3a7ce4a6b7668d8","records":[{"revision":"7a468e12f52f484da3a7ce4a6b7668d8","observedAt":"2026-11-01T01:15:24.637+00:00","statement":{"source":"euvd","id":"EUVD-2025-201827","aliases":["CVE-2025-66622","GHSA-jj6p-3m75-g2p3"],"title":"matrix-sdk-base is the base component to build a Matrix client library. Versions 0.14.1 and prior are unable to handle responses that include custom m.room.join_rules values due to a serialization bug. This can be exploited to cause a denia…","description":"matrix-sdk-base is the base component to build a Matrix client library. Versions 0.14.1 and prior are unable to handle responses that include custom m.room.join_rules values due to a serialization bug. This can be exploited to cause a denial-of-service condition, if a user is invited to a room with non-standard join rules, the crate's sync process will stall, preventing further processing for all rooms. This is fixed in version 0.16.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U","score":1.3,"severity":null}],"references":["https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-jj6p-3m75-g2p3","https://github.com/matrix-org/matrix-rust-sdk/pull/5924","https://github.com/matrix-org/matrix-rust-sdk/commit/4ea0418abefab2aa93f8851a4d39c723e703e6b0","https://rustsec.org/advisories/RUSTSEC-2025-0135.html"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-201827","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Dec 9, 2025, 2:07:18 AM","dateUpdated":"Dec 9, 2025, 4:02:47 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2025-201827","identifiers":["EUVD-2025-201827","CVE-2025-66622","GHSA-jj6p-3m75-g2p3"]},"retained":false,"historicalAffected":[]}],"coverage":[]}