DEBIAN-CVE-2026-111061

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Source
https://security-tracker.debian.org/tracker/CVE-2026-111061
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111061.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-111061
Upstream
Published
2026-10-20T15:47:34Z
Modified
2026-10-20T16:00:08Z
Summary
[none]
Details

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.

References

Affected packages

Debian:14 / rust-russh

Package

Name
rust-russh
Purl
pkg:deb/debian/rust-russh?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.64.1-1

Affected versions

0.*
0.57.1-1
0.57.1-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111061.json"