Improper Input Validation Affecting russh package, versions >=0.34.0-beta.1 <0.61.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Jun 2026
- disclosed10 Jun 2026
- creditmjc
Introduced: 10 Jun 2026
NewCVE-2026-48108 (opens in a new tab)How to fix?
Upgrade russh to version 0.61.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Input Validation in the SSH identification parsing process. An attacker can exhaust server resources by sending a large number of non-canonical or malformed pre-banner lines during connection setup, potentially leading to denial of service by holding connection setup resources in the pre-authentication phase.