{"id":"GHSA-6g43-88cp-w5gv","summary":"Prototype pollution in matrix-react-sdk ","details":"### Impact\nIn certain configurations, data sent by remote servers containing special strings in key locations could cause modifications of the `Object.prototype`, disrupting matrix-react-sdk functionality, causing denial of service and potentially affecting program logic.\n\n(This is part 2, where [CVE-2022-36060](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36060) / [GHSA-2x9c-qwgf-94xr](https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-2x9c-qwgf-94xr) is part 1. Part 2 covers remaining vectors not covered by part 1, found in a codebase audit scheduled after part 1.)\n\n### Patches\nThis is fixed in matrix-react-sdk 3.69.0\n\n### Workarounds\nNone.\n\n### References\n\n- [Release blog post](https://matrix.org/blog/2023/03/28/security-releases-matrix-js-sdk-24-0-0-and-matrix-react-sdk-3-69-0)\n- The advisory [GHSA-2x9c-qwgf-94xr](https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-2x9c-qwgf-94xr) ([CVE-2022-36060](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36060)) refers to an initial set of vulnerable locations discovered and patched in matrix-react-sdk 3.53.0. We opted not to disclose that advisory while we performed an audit of the codebase and are now disclosing it jointly with this one.\n\n### For more information\nIf you have any questions or comments about this advisory please email us at [security at matrix.org](mailto:security@matrix.org).","aliases":["CVE-2023-28103"],"modified":"2026-09-10T03:49:52.704830765Z","published":"2023-03-29T19:34:25Z","database_specific":{"cwe_ids":["CWE-1321"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2023-03-29T19:34:25Z","nvd_published_at":"2023-03-28T21:15:00Z"},"references":[{"type":"WEB","url":"https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-2x9c-qwgf-94xr"},{"type":"WEB","url":"https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-6g43-88cp-w5gv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28103"},{"type":"PACKAGE","url":"https://github.com/matrix-org/matrix-react-sdk"},{"type":"WEB","url":"https://matrix.org/blog/2023/03/28/security-releases-matrix-js-sdk-24-0-0-and-matrix-react-sdk-3-69-0"}],"affected":[{"package":{"name":"matrix-react-sdk","ecosystem":"npm","purl":"pkg:npm/matrix-react-sdk"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.69.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/03/GHSA-6g43-88cp-w5gv/GHSA-6g43-88cp-w5gv.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"}]}