CVE-2026-48110

Published Jun 10, 2026

Last updated 3 months ago

CVSS high 7.5
SSH
Port (22)

Overview

Description
Russh is a Rust SSH client & server library. From version 0.34.0 to before version 0.61.0, several russh client and server message handlers decoded attacker-controlled SSH strings, name-lists, and byte fields into owned allocations before applying field-specific bounds. A remote SSH peer could send oversized, high-fanout, or malformed length-prefixed fields and make the library allocate, attempt to allocate, or split data before rejecting input that should have been rejected earlier. This issue has been patched in version 0.61.0.
Source
security-advisories@github.com
NVD status
Deferred

Risk scores

CVSS 3.1

Type
Secondary
Base score
7.5
Impact score
3.6
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity
HIGH

Weaknesses

security-advisories@github.com
CWE-20

Social media

Hype score
Not currently trending

Related CVEs

  1. GitLab Community Edition and Enterprise Edition Path Traversal Vulnerability•CVE-2026-85706
  2. Mikrotik RouterOS Improper Enforcement of Behavioral Workflow Vulnerability•CVE-2026-67279
  3. MikroTik RouterOS Improper Neutralization of Argument Delimiters in a Command Vulnerability•CVE-2026-86060
  4. RouterOS does not compare the complete RSA public key when matching an SSH authentication request to an authorized user key, checking the key type and modulus but omitting the exponent. Because signature verification uses the client-supplied key, an attacker knowing an authorized RSA modulus can supply a key with exponent one, forge a valid signature, and open an SSH command channel as the target user without the private key.This issue affects only 7.x branch was fixed in versions: 7.23.4 (Long-term) and 7.24.2 (Stable)•CVE-2026-67276
  5. A vulnerability has been identified in the SSH daemon of HPE Networking Fabric Composer that could allow an unauthenticated remote attacker to gain administrative access to vulnerable AFC hosts. Successful exploitation could allow an attacker to execute arbitrary commands as a privileged user on the underlying operating system leading to complete system compromise.•CVE-2026-76658

References

Sources include official advisories and independent security research.