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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-48110

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

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Eugeny russh

  • >= 0.34.0, < 0.61.0affected

References