Element Call is a native Matrix video conferencing application. From 0.16.0 until 0.20.3, the standalone Element Call `SPA` logs the `password` URL query parameter. When a user submits an error report, called a rageshake, these logs are shared with the application operator.
Users can therefore unintentionally disclose the shared `password` used to encrypt the call, potentially compromising call confidentiality. Avoiding submission of bug reports or debug logs prevents this disclosure path in affected versions. Upgrading does not remove secrets from previously collected `rageshakes`, which require separate cleanup by the log-server operator.
This issue is fixed in version 0.20.3.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
Active
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/element-hq/element-call/commit/51bd17d3356462f09560100f28135…
security-advisories@github.com
https://github.com/element-hq/element-call/commit/a47c1536fcccd73ed7cdb89fff7d1…
security-advisories@github.com
https://github.com/element-hq/element-call/releases/tag/v0.20.3
security-advisories@github.com
https://github.com/element-hq/element-call/releases/tag/v0.21.0
security-advisories@github.com
https://github.com/element-hq/element-call/security/advisories/GHSA-wpww-g4f9-v…
security-advisories@github.com