DEBIAN-CVE-2026-111062

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    DEBIAN-CVE-2026-111062

    Published: 5 Nov 2026Last Modified: 7 Nov 2026
    Upstream:
    CVE-2026-111062

    Summary:

    Details: russh is a Rust SSH client and server library. From version 0.34.0-beta.1 until version 0.64.0, its SSH server does not require the signature algorithm in a public-key authentication signature to match the algorithm named in the authentication request. A client possessing an authorized RSA private key can announce  rsa-sha2-512  while supplying a valid  ssh-rsa  SHA-1 signature, bypassing restrictions or producing misleading audit records when applications rely on the requested algorithm. A valid private-key signature remains required, and russh clients are not affected. This issue is fixed in version 0.64.0.

    References: https://security-tracker.debian.org/tracker/CVE-2026-111062

    Affected packages

    Package

    Name: rust-russh

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.64.1-1

    Affected versions

    0.57.1-1
    0.57.1-2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    DEBIAN-CVE-2026-111062 | CVE-DB