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CVE-2026-46702

CVE-2026-46702 · Russh: Post-decompression SSH packet size was not bounded, allowing remote oversized compressed packets

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

Russh is a Rust SSH client & server library. From version 0.34.0 to before version 0.61.1, when SSH compression is enabled, russh accepted compressed packets whose on-wire size passed the normal transport packet-length checks but whose decompressed size was much larger. This allowed a remote peer to send oversized post-decompression packets that should have been rejected. In current releases, this is a remote denial-of-service / resource-exhaustion issue in the post-decompression receive path. In older releases before 0.58.0, the same remote decompression path used CryptoVec, which appears to make the historical impact worse. This issue has been patched in version 0.61.1.

CVSS 7.5 · Élevée · EPSS 0,3% · Correctif disponible

Publication
Mise à jour

Pile logicielle: system

Produits et versions concernés

  • russh

    Versions du logiciel
    • >= 0.34.0, < 0.61.1: Concernée

    Aucun correctif publié

  • rust-russh Debian:14

    Versions du logiciel
    • 0.57.1-1
    • 0.57.1-2
    Plages de versions concernées
    • ECOSYSTEM: < 0.64.1-1

    Mettez à jour vers 0.64.1-1

Sources originales

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