CVE-2026-106583: In ssh in OpenSSH before 10.6, a $ or \ character can occur in a command-line username, leading to injection
CVE-2026-106583 analysis covering impact, affected products, versions, remediation, and cross-checked defender guidance.
CVE-2026-106583 is a vulnerability published by NVD on 10/7/2026.
What happened
In ssh in OpenSSH before 10.6, a $ or \ character can occur in a command-line username, leading to injection.
Affected products and versions
- NVD has not published a normalized affected-product configuration yet.
Severity and weakness
CVSS: LOW 2.5. Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N.
Weaknesses: CWE-99.
Known exploitation
No CISA KEV entry is currently attached to the NVD record.
What defenders should do
- Identify whether the affected product and version range exists in production.
- Review vendor advisories and release notes before change windows.
- Patch, upgrade, disable the vulnerable component, or apply vendor mitigations.
- Verify the running version after deployment, not only the package inventory.
Official and supporting references
- No vendor advisory tagged by NVD at draft time.