CVE-2026-104480

Summary

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 Software

VendorProductVersion RangeStatus
Discordlibdave1.1.0 < 1.2.0affected
Discordlibdave7b15f1fc16f159da0478aa6be909e38f1e957833 < 9686fbaea864aa19f0675e486672b6a77811b6a1affected

Weaknesses

  • CWE-390: CWE-390 Detection of Error Condition Without Action
  • CWE-863: CWE-863 Incorrect Authorization

References