{"action":"Upgrade matrix-js-sdk to 12.4.1 or later.","affected":[{"fixed":"12.4.1","introduced":"0"}],"component":"matrix-js-sdk","cve_ids":["CVE-2021-40823"],"ecosystem":"npm","epss":0.00662,"exploited":false,"fixed_versions":["12.4.1"],"ghsa_id":"GHSA-23cm-x6j7-6hq3","id":"tcs_01M5KERS3SQMY6A82R19CQXZNE","modified_at":"2023-11-08T04:06:49.200441Z","published_at":"2021-09-14T20:24:18Z","references":["https://osv.dev/vulnerability/GHSA-23cm-x6j7-6hq3","https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-23cm-x6j7-6hq3","https://nvd.nist.gov/vuln/detail/CVE-2021-40823","https://github.com/matrix-org/matrix-js-sdk/commit/894c24880da0e1cc81818f51c0db80e3c9fb2be9","https://github.com/matrix-org/matrix-js-sdk","https://github.com/matrix-org/matrix-js-sdk/releases/tag/v12.4.1","https://matrix.org/blog/2021/09/13/vulnerability-disclosure-key-sharing"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"GHSA-23cm-x6j7-6hq3","url":"https://osv.dev/vulnerability/GHSA-23cm-x6j7-6hq3"}],"summary":"matrix-js-sdk can be tricked into disclosing E2EE room keys to a participating homeserver"}