SYOX
May 27, 2026, 2:34pm
1
We have released new security updates for the TeamSpeak 3 Server and TeamSpeak SDK server-side integrations, addressing several reported vulnerabilities. We strongly recommend updating affected deployments as soon as possible.
Affected versions:
TeamSpeak 3 Server 3.13.7 and below
TeamSpeak SDK 3.3.1 and below
Fixed versions:
TeamSpeak 3 Server 3.13.8
TeamSpeak SDK 3.5.0
The updated versions are now available for download on our website.TeamSpeak Downloads | Server TeamSpeak Downloads | SDK
For detailed technical information, affected components, CVEs, and mitigation details, please refer to the official security advisory below:
You can also find modzero’s full disclosure report here: [MZ-26-01] TeamSpeak / modzero
CVE-2026-4391 , affecting ECC key parsing during the connection handshake.
The original fix released with 3.13.8 did not cover this additional variant, which could allow an unauthenticated remote attacker to crash the server using specially crafted input.
We strongly recommend updating to TeamSpeak 3 Server 3.13.9 as soon as possible.
The updated server version is now available for dow…
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I’d like to update but there is no container image on docker hub.
SYOX
May 27, 2026, 3:28pm
4
We are already working on making the Docker image available in the official Docker repository, and a pull request has already been submitted.
In the meantime, please use the following image:teamspeaksystems/teamspeak3-server:3.13.8
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