USN-9067-1: Charybdis vulnerability
Publication date
12 November 2026
Overview
Charybdis could allow unintended access to network services.
Releases
Packages
- charybdis - highly-scalable IRCv3-compliant server
Details
It was discovered that Charybdis incorrectly validated AUTHENTICATE
parameters during SASL authentication. A remote attacker could possibly use
this issue to spoof certificate fingerprints and log in as another user.
It was discovered that Charybdis incorrectly validated AUTHENTICATE
parameters during SASL authentication. A remote attacker could possibly use
this issue to spoof certificate fingerprints and log in as another user.
Update instructions
After a standard system update you need to restart Charybdis to make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 16.04 LTS xenial | charybdis – 3.5.0-1ubuntu0.1~esm1 | ||
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