CVE catalog
CVE-2026-111061
UBUNTU-CVE-2026-111061
- Severity
- Unknown · CVSS 4.3
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.35% · Oct 27, 2026
russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. Prior to 0.64.1, the agent server spawns a separate long-lived task for every SSH_AGENT_CONSTRAIN_LIFETIME record in a constrained add-key request. The loop accepts repeated lifetime records, clones the key blob into each task, and does not roll back tasks when later constraint parsing fails. An attacker that can speak the agent protocol locally or through agent forwarding can exhaust memory and tasks until the agent process is starved or terminated, denying SSH agent service. This issue is fixed in version 0.64.1.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | rust-russh | 14 | 0.57.1-1 | vulnerable |
| Debian | rust-russh | 14 | 0.57.1-2 | vulnerable |
| Debian | rust-russh | 14 | 0.64.1-1 | fixed |
| Ubuntu | rust-russh | 26.10 | 0.57.1-2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | rust-russh | deb | 14 | 0.64.1-1 | Not reported | DEBIAN-CVE-2026-111061 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed: