| Name | CVE-2026-59848 |
| Description | Denial of service via SFTP responses with unknown request IDs |
| 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) |
| Debian Bugs | 1142537 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libssh (PTS) | bullseye | 0.9.8-0+deb11u1 | vulnerable |
| bullseye (security) | 0.9.8-0+deb11u2 | vulnerable |
| bookworm | 0.10.6-0+deb12u2 | vulnerable |
| bookworm (security) | 0.10.6-0+deb12u1 | vulnerable |
| trixie | 0.11.2-1+deb13u1 | vulnerable |
| forky, sid | 0.12.0-3 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libssh | source | (unstable) | (unfixed) | | | 1142537 |
Notes
https://www.libssh.org/2026/07/21/libssh-0-12-1-and-0-11-5-security-releases/
https://www.libssh.org/security/advisories/CVE-2026-59848.txt
Fixed by: https://git.libssh.org/projects/libssh.git/commit/?id=9563afc950f473daa355ca594e2e5f4d520460ac (libssh-0.12.1)
Fixed by: https://git.libssh.org/projects/libssh.git/commit/?id=e3dc89de9754790e49b26f03b70e8e4acc88bde8 (libssh-0.12.1)