https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-10T11:09:21.977081+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-233784 EUVD-2026-233784 2026-10-10T11:09:21.979833+00:00 EUVD-2026-233784 https://cve.radiocsirt.org/vuln/fkie_cve-2022-36009 fkie_cve-2022-36009 2026-10-10T11:09:21.979867+00:00

gomatrixserverlib is a Go library for matrix protocol federation. Dendrite is a Matrix homeserver written in Go, an alternative to Synapse. The power level parsing within gomatrixserverlib was failing to parse the `"events_default"` key of the `m.room.power_levels` event, defaulting the event default power level to zero in all cases. Power levels are the matrix terminology for user access level. In rooms where the `"events_default"` power level had been changed, this could result in events either being incorrectly authorised or rejected by Dendrite servers. gomatrixserverlib contains a fix as of commit `723fd49` and Dendrite 0.9.3 has been updated accordingly. Matrix rooms where the `"events_default"` power level has not been changed from the default of zero are not vulnerable. Users are advised to upgrade. There are no known workarounds for this issue.

 https://cve.radiocsirt.org/vuln/ghsa-grvv-h2f9-7v9c GHSA-grvv-h2f9-7v9c — gomatrixserverlib and Dendrite vulnerable to incorrect parsing of the event default power level in event auth 2026-10-10T11:09:21.979905+00:00

Affected: Go: github.com/matrix-org/dendrite, Go: github.com/matrix-org/gomatrixserverlib

### Impact

The power level parsing within gomatrixserverlib was failing to parse the `"events_default"` key of the `m.room.power_levels` event, defaulting the event default power level to zero in all cases.

In rooms where the `"events_default"` power level had been changed, this could result in events either being incorrectly authorised or rejected by Dendrite servers.

### Patches

gomatrixserverlib contains a fix as of commit `723fd49` and Dendrite 0.9.3 has been updated accordingly.

### Workarounds

Matrix rooms where the `"events_default"` power level has not been changed from the default of zero are not vulnerable.

### For more information

If you have any questions or comments about this advisory, e-mail us at [security@matrix.org](mailto:security@matrix.org).

 https://cve.radiocsirt.org/vuln/gsd-2022-36009 gsd-2022-36009 2026-10-10T11:09:21.979940+00:00 gsd-2022-36009