| Name | CVE-2026-7598 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4773-1, DSA-6365-1 |
| Debian Bugs | 1135647 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libssh2 (PTS) | bookworm | 1.10.0-3 | vulnerable |
| bookworm (security) | 1.10.0-3+deb12u1 | fixed |
| trixie | 1.11.1-1+deb13u2 | fixed |
| trixie (security) | 1.11.1-1+deb13u1 | fixed |
| forky, sid | 1.11.1-6 | fixed |
The information below is based on the following data on fixed versions.
Notes
[bullseye] - libssh2 <postponed> (Minor issue, unlikely user/pass length)
https://github.com/libssh2/libssh2/pull/1858
https://github.com/libssh2/libssh2/commit/256d04b60d80bf1190e96b0ad1e91b2174d744b1