critical9.4
CVE-2026-104480
Discord libdave before 1.2.0 did not reject an MLS Welcome message when the resulting group roster contained an unrecognized participant.
Impact
Discord libdave before 1.2.0 did not reject an MLS Welcome message when the resulting group roster contained an unrecognized participant. An attacker in control of the DAVE signaling path (the voice gateway, or an equivalent position able to add, alter, or withhold signaling messages to a client) could cause affected clients to accept an unauthorized member into the end-to-end encrypted media session, compromising the confidentiality and integrity of audio and video.
Affected products
| Product | Affected versions |
|---|---|
| Discord Libdave | before 1.2.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.