PT-2026-48547 · Eugeny · Russh

Published 2026-06-10 · Updated 2026-06-10 · CVE-2026-48110

Mitre

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2026-48110

Affected Products

Russh

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-48110 · Security Note
• https://github.com/Eugeny/russh/security/advisories/GHSA-4r3c-5hpg-58qr · Note