CVE-2026-106583 Command injection in OpenSSH
Attackers can inject commands via special characters in the username, potentially leading to remote code execution on OpenSSH servers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-106583?
CVE-2026-106583 is a low-severity command injection vulnerability in OpenSSH, published on 6 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In ssh in OpenSSH before 10.6, a $ or \ character can occur in a command-line username, leading to injection.
Weakness: CWE-99
Which versions are affected by CVE-2026-106583?
It affects 1 product.
Products include OpenSSH.
How do I fix CVE-2026-106583?
Upgrade to a fixed version.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-106583 being exploited?
There is no known exploitation of CVE-2026-106583 in the wild and no public exploit code.
Other vulnerabilities in OpenSSH
Sources
Also known as AZL-106685, BELL-CVE-2026-106583, CVE-2026-110925, DEBIAN-CVE-2026-106583, ECHO-9264-3de4-ed6a, GHSA-99hr-wq4p-x49q and 3 more.