CVE-2026-48107
MEDIUM EPSS 13.9%
Published Jun 10, 20263w ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Published Jun 10, 2026 3w ago
Last Modified Jun 17, 2026 2w ago
Description
Russh is a Rust SSH client & server library. From version 0.37.0 to before version 0.61.0, in the russh client keyboard-interactive authentication path, a malicious SSH server could send a USERAUTH_INFO_REQUEST with an attacker-controlled prompt count, and the client would use that raw count directly in Vec::with_capacity(...) before validating that enough prompt data was actually present in the packet. This issue has been patched in version 0.61.0.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
13.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-20 Improper Input Validation Validation
References 1
- github.com https://github.com/Eugeny/russh/security/advisories/GHSA-g9g7-5cgw-6v28
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.