CVE Watch13 nov 2026

CVE-2026-128088

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. Prior to version 0.65.1, try_sign() captur

CVSS

2.2

Bajo

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 13 nov 2026 · Última mod.: 13 nov 2026 · CWE-367 · CWE-863

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. Prior to version 0.65.1, try_sign() captures an Arc<PrivateKey> before awaiting Agent::confirm() and does not revalidate the shared lock state or key presence after the await. This is a distinct residual defect in the remediation for CVE-2026-116794. A peer, including a remote SSH server using agent forwarding, can begin a confirmation-constrained signature request while the agent is unlocked and receive the signature after another connection locks the agent if the stale confirmation returns true. New post-lock requests are rejected and private key material is not disclosed, but the pending operation bypasses the current lock state. This issue is fixed in version 0.65.1.

Referencias oficiales

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