CVE-2021-40823
MediumAdvisory
Published 14 Sept 2021In the index since 9 Sept 2026
- Severity
- Medium
- worst across findings
- CVSS
- 5.9
- base score, highest
- EPSS
- 0.007
- 50th percentile
- CISA KEV
- Not listed
- no confirmed exploitation
- Charts affected
- 1
- of 17,781 indexed, latest versions
- Container images
- 1
- deployed by those charts
- Fix available
- 1 of 1
- affected package
matrix-js-sdk can be tricked into disclosing E2EE room keys to a participating homeserver
Carried by container images the latest versions of 1 of 17,781 indexed charts deploy, on 1 image.
| Affected package | Affected versions | Fixed in | Images |
|---|---|---|---|
| matrix-js-sdknpm | 2.4.6 | 12.4.1 | 1 |
- OSV records
- GHSA-23cm-x6j7-6hq3
Charts affected
1 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| matrix-appservice-gitterhalkeye | 0.1.0 | 1 of 1See more | 3,003 |
Container images carrying it
1 by charts deploying them
A fixed version is listed for 1 of the 1 affected package.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| matrixdotorg/ | 0d37b4d42b47 | matrix-js-sdk | 12.4.1 | 1 |