{"cve":"CVE-2025-48937","nvd":{"published":"2025-06-10T16:15:41.670","modified":"2026-06-17T09:30:30.947","status":"Deferred","description":"matrix-rust-sdk is an implementation of a Matrix client-server library in Rust. matrix-sdk-crypto since version 0.8.0 and up to 0.11.0 does not correctly validate the sender of an encrypted event. Accordingly, a malicious homeserver operator can modify events served to clients, making those events appear to the recipient as if they were sent by another user. This vulnerability is fixed in 0.11.1 and 0.12.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","score":4.9},"cwes":["CWE-290"],"references":["https://github.com/matrix-org/matrix-rust-sdk/commit/13c1d2048286bbabf5e7bc6b015aafee98f04d55","https://github.com/matrix-org/matrix-rust-sdk/commit/56980745b4f27f7dc72ac296e6aa003e5d92a75b","https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-x958-rvg6-956w","https://spec.matrix.org/v1.14/client-server-api/#mmegolmv1aes-sha2"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:02:23.998251710+00:00"},"epss":{"cve":"CVE-2025-48937","score":0.00369,"percentile":0.30756,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-x958-rvg6-956w","url":"https://osv.dev/vulnerability/GHSA-x958-rvg6-956w","summary":"matrix-sdk-crypto vulnerable to sender of encrypted events being spoofed by homeserver administrator","modified":"2025-06-12T21:23:37Z","packages":[{"ecosystem":"crates.io","name":"matrix-sdk-crypto","purl":"pkg:cargo/matrix-sdk-crypto","ranges":[">=0.8.0 <0.11.1"],"fixed":["0.11.1"]}]},{"id":"RUSTSEC-2025-0041","url":"https://osv.dev/vulnerability/RUSTSEC-2025-0041","summary":"matrix-sdk-crypto vulnerable to encrypted event sender spoofing by homeserver administrator","modified":"2026-10-12T18:00:10.940253855Z","packages":[{"ecosystem":"crates.io","name":"matrix-sdk-crypto","purl":"pkg:cargo/matrix-sdk-crypto","ranges":[">=0.8.0 <0.11.1"],"fixed":["0.11.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}