CVE-2026-7598: LIBSSH2

High severity, CVSS 7.3. EPSS: 0.8% chance of exploitation in the next 30 days.

A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauth_password of the file src/userauth.c. Such manipulation of the argument username_len/password_len leads to integer overflow. The attack may be launched remotely. The name of the patch is 256d04b60d80bf1190e96b0ad1e91b2174d744b1. A patch should be applied to remediate this issue.

Affected products

• LIBSSH2 LIBSSH2: up to and including 1.11.1

Published 2026-05-01. Last modified 2026-09-01.