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CVE-2026-48110

CVE-2026-48110 · Russh: SSH message fields were decoded through allocation-first parsers before field-specific bounds

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Russh is a Rust SSH client & server library. From version 0.34.0 to before version 0.61.0, several russh client and server message handlers decoded attacker-controlled SSH strings, name-lists, and byte fields into owned allocations before applying field-specific bounds. A remote SSH peer could send oversized, high-fanout, or malformed length-prefixed fields and make the library allocate, attempt to allocate, or split data before rejecting input that should have been rejected earlier. This issue has been patched in version 0.61.0.

CVSS 7.5 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • russh

    Versions
    • >= 0.34.0, < 0.61.0: Affected

    No fix published

  • rust-russh Debian:14

    Versions
    • 0.57.1-1
    • 0.57.1-2
    Affected ranges
    • ECOSYSTEM: < 0.64.1-1

    Update to 0.64.1-1

Original sources

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