Vulnerabilities CVE-2026-68930

CVE-2026-68930

Medium

Open

TLP:CLEAR

Russh: Channel-scoped server callbacks can be reached without an open channel

NVD CVE.org

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Description

Russh is a Rust SSH client & server library. Prior to 0.62.5, russh dispatches channel-scoped Handler callbacks for recipient channel IDs that were never opened or confirmed in russh/src/server/encrypted.rs, server_read_authenticated, and the exec_request callback. Version 0.62.5 fixes the issue.

Details

CVSS Score: 6.5
EPSS Score ⓘ: 0.21%

12th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Confidence: 90%
Published: Aug 3, 2026
Last Modified: Aug 3, 2026

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