CVE-2026-104480 Details
Description
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No CVSS 3.x data is available for this CVE.
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://daveprotocol.com/ | Bugcrowd Inc. | |
| https://github.com/discord/libdave | Bugcrowd Inc. | |
| https://github.com/discord/libdave/commit/9686fbaea864aa19f0675e486672b6a77811b6a1 | Bugcrowd Inc. | |
| https://github.com/discord/libdave/releases/tag/v1.2.0/cpp | Bugcrowd Inc. |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-390 | Detection of Error Condition Without Action | Bugcrowd Inc. |
| CWE-863 | Incorrect Authorization | Bugcrowd Inc. |
Affected Products
No affected product data is available for this CVE.
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 2, 2026 | CVE Modified | CISA-ADP |
| Oct 2, 2026 | New CVE Received | Bugcrowd Inc. |