What is CVE-2026-48108?

CVE-2026-48108 is a medium-severity vulnerability in Eugeny Russh, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-06-10.

How severe is CVE-2026-48108?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Improper input validation in Eugeny Russh

CVE-2026-48108

Russh is a Rust SSH client & server library. From version 0.34.0-beta.1 to before version 0.61.0, russh did not enforce the SSH identification-string rules as deliberately as OpenSSH. In particular, the server-side identification reader us…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.003 (19.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Eugeny Russh — versions >= 0.34.0-beta.1, < 0.61.0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-48108?: CVE-2026-48108 is a medium-severity vulnerability in Eugeny Russh, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-06-10.
How severe is CVE-2026-48108?: Medium severity. CVSS v3 base score is 5.3 out of 10.