CVE-2026-96609 Denial of service in Albatross
Authorized users can cause a denial of service in Robur Albatross by filling the ring buffer, leading to an infinite loop in the console.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-96609?
CVE-2026-96609 is a high-severity denial of service vulnerability in Robur Albatross, published on 23 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Robur Albatross 1.0.0 through 2.x before 2.7.2 does not limit use of the ring buffer, leading to an albatross-console loop with no recognized termination condition. This is only exploitable by users who can send console subscription commands to unikernels that produce sufficient log output to fill the ring buffer (1024 lines). It is not exploitable by unauthorized clients.
Weakness: CWE-770
Which versions are affected by CVE-2026-96609?
How do I fix CVE-2026-96609?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-96609 being exploited?
There is no known exploitation of CVE-2026-96609 in the wild and no public exploit code.
Sources
Also known as GHSA-p97r-9rrc-gr9r, OSEC-2026-09.