CVE Watch28 de out. de 2026

CVE-2026-116774

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open par

CVSS

4.3

Média

EPSS

0.3%

p18

KEV

—

Exploit Today

0-100

Publicado: 27 de out. de 2026 · Última mod.: 28 de out. de 2026 · CWE-400 · CWE-835

EPSS · 30d

0.3%EPSS · 30 dias0.3%

2026-10-282026-11-07

Descrição técnica

russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.60.0 until 0.65.0, channel-open parsing accepts a peer-declared maximum_packet_size of zero and passes it into ChannelTx::poll_writable in russh/src/channels/io/tx.rs. The Channel::data, Channel::make_writer, and Channel::into_stream asynchronous write paths then calculate a writable size of zero and remain pending forever because window adjustments cannot satisfy a static zero packet maximum. An authenticated client can strand server writes, and a malicious server can strand client writes, allowing affected tasks, channels, and connections to accumulate without surfacing an error. This issue is fixed in version 0.65.0.

Referências oficiais

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