Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 2.6 | Low | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0092, the 60th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
- GitHub Advisory Database: GHSA-52mq-6jcv-j79x
- OSV: GHSA-52mq-6jcv-j79x
- github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-52mq-6jcv-j79x
- nvd.nist.gov/vuln/detail/CVE-2021-21320
- github.com/matrix-org/matrix-react-sdk/pull/5657
- github.com/matrix-org/matrix-react-sdk/commit/b386f0c73b95ecbb6ea7f8f79c6ff5171a8dedd1
- www.npmjs.com/package/matrix-react-sdk