CVE-2026-7598
High
Description
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.
SeverityHigh
CVSS7.3
Exploit probability—
ProductLibssh2
PublishedMay 1, 2026
First seenMay 1, 2026
Weakness typeCWE-190Integer overflowCWE-189CWE-189
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libssh2 libssh2 | v ≤ 1.11.1 | — |
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